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Isaacs DA, Hay KR, Hoadley J, McDonell KE, Brown AE, Wynn A, Claassen DO, Gibson J. Influence of anosognosia on patient-reported outcomes for psychiatric symptoms and quality of life in Huntington's disease. Parkinsonism Relat Disord 2024; 123:106969. [PMID: 38614044 PMCID: PMC11169743 DOI: 10.1016/j.parkreldis.2024.106969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/16/2024] [Accepted: 04/07/2024] [Indexed: 04/15/2024]
Abstract
INTRODUCTION Anosognosia, defined as reduced awareness of one's deficit or symptom, is common in Huntington's disease (HD) and detectable at each disease stage. The impact of anosognosia on self-reporting in HD populations is critical to understand given growing use of patient-reported outcomes in HD clinical care and research. We aimed to determine the influence of anosognosia on patient-reported outcome measures assessing psychiatric symptoms and quality of life in HD. METHODS We enrolled HD patients to complete a battery of patient-reported and rater-administered measures, including the Anosognosia Scale, at baseline and 6 months later. Patient-reported outcome measures included NeuroQoL short forms for depression, anxiety, satisfaction with social roles and activities, and positive affect and well-being and Patient-Reported Outcomes Measurement Information System short forms for emotional distress-anger and sleep-related impairment. Anosognosia Scale-Difference Score indexed patient-clinician agreement on patient motor, cognitive, and behavioral abilities. We conducted multivariable linear regression analyses to quantify the association of baseline anosognosia with 6-month patient-reported outcomes. RESULTS Of 79 patients with complete Anosognosia Scale data at baseline, 25 (31.6 %) met the scale's criterion for anosognosia. In the regression analyses, baseline Difference Score improved prediction of 6-month patient-reported outcomes for depression, anxiety, anger, and positive affect and well-being (χ2(1) value range for likelihood ratio tests contrasting models with and without Difference Score: 13.1-20.9, p-values <0.001). Patients with more anosognosia self-reported less severe psychiatric symptoms and more positive affect and well-being. CONCLUSION Study results suggest that anosognosia influences patient-reported outcomes for psychiatric symptoms and quality of life in HD populations.
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Affiliation(s)
- David A Isaacs
- Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN, 37232, USA; Monroe Carell Jr. Children's Hospital at Vanderbilt, 2200 Children's Way, Nashville, TN, 37232, USA.
| | - Kaitlyn R Hay
- Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN, 37232, USA.
| | - Jennifer Hoadley
- Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN, 37232, USA.
| | - Katherine E McDonell
- Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN, 37232, USA.
| | - Amy E Brown
- Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN, 37232, USA.
| | - Amy Wynn
- Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN, 37232, USA.
| | - Daniel O Claassen
- Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN, 37232, USA.
| | - Jessie Gibson
- University of Virginia School of Nursing, 202 Jeanette Lancaster Way, Charlottesville, VA, 22903, USA.
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López-Martos D, Suárez-Calvet M, Milà-Alomà M, Gispert JD, Minguillon C, Quijano-Rubio C, Kollmorgen G, Zetterberg H, Blennow K, Grau-Rivera O, Sánchez-Benavides G. Awareness of episodic memory and meta-cognitive profiles: associations with cerebrospinal fluid biomarkers at the preclinical stage of the Alzheimer's continuum. Front Aging Neurosci 2024; 16:1394460. [PMID: 38872632 PMCID: PMC11169691 DOI: 10.3389/fnagi.2024.1394460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 05/13/2024] [Indexed: 06/15/2024] Open
Abstract
Introduction The lack of cognitive awareness, anosognosia, is a clinical deficit in Alzheimer's disease (AD) dementia. However, an increased awareness of cognitive function, hypernosognosia, may serve as a marker in the preclinical stage. Subjective cognitive decline (SCD) might correspond to the initial symptom in the dynamic trajectory of awareness, but SCD might be absent along with low awareness of actual cognitive performance in the preclinical stage. We hypothesized that distinct meta-cognitive profiles, both hypernosognosia and anosognosia, might be identified in preclinical-AD. This research evaluated the association between cerebrospinal fluid (CSF) AD biomarkers and the awareness of episodic memory, further exploring dyadic (participant-partner) SCD reports, in the preclinical Alzheimer's continuum. Methods We analyzed 314 cognitively unimpaired (CU) middle-aged individuals (mean age: 60, SD: 4) from the ALFA+ cohort study. Episodic memory was evaluated with the delayed recall from the Memory Binding Test (MBT). Awareness of episodic memory, meta-memory, was defined as the normalized discrepancy between objective and subjective performance. SCD was defined using self-report, and dyadic SCD profiles incorporated the study partner's report using parallel SCD-Questionnaires. The relationship between CSF Aβ42/40 and CSF p-tau181 with meta-memory was evaluated with multivariable regression models. The role of SCD and the dyadic contingency was explored with the corresponding stratified analysis. Results CSF Aβ42/40 was non-linearly associated with meta-memory, showing an increased awareness up to Aβ-positivity and a decreased awareness beyond this threshold. In the non-SCD subset, the non-linear association between CSF Aβ42/40 and meta-memory persisted. In the SCD subset, higher Aβ-pathology was linearly associated with increased awareness. Individuals presenting only study partner's SCD, defined as unaware decliners, exhibited higher levels of CSF p-tau181 correlated with lower meta-memory performance. Discussion These results suggested that distinct meta-cognitive profiles can be identified in preclinical-AD. While most individuals might experience an increased awareness associated with the entrance in the AD continuum, hypernosognosia, some might be already losing insight and stepping into the anosognosic trajectory. This research reinforced that an early anosognosic profile, although at increased risk of AD-related decline, might be currently overlooked considering actual diagnostic criteria, and therefore its medical attention delayed.
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Affiliation(s)
- David López-Martos
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- Hospital del Mar Research Institute (IMIM), Barcelona, Spain
| | - Marc Suárez-Calvet
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- Hospital del Mar Research Institute (IMIM), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable, Instituto de Salud Carlos III, Madrid, Spain
- Servei de Neurologia, Hospital del Mar, Barcelona, Spain
| | - Marta Milà-Alomà
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- Department of Veterans Affairs Medical Center, Northern California Institute for Research and Education (NCIRE), San Francisco, CA, United States
- Department of Radiology, University of California San Francisco, San Francisco, CA, United States
| | - Juan Domingo Gispert
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- Hospital del Mar Research Institute (IMIM), Barcelona, Spain
- Centro de Investigación Biomédica en Red Bioingeniería, Biomateriales y Nanomedicina, Madrid, Spain
| | - Carolina Minguillon
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- Hospital del Mar Research Institute (IMIM), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable, Instituto de Salud Carlos III, Madrid, Spain
| | | | | | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, United Kingdom
- UK Dementia Research Institute at UCL, London, United Kingdom
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, Hong Kong SAR, China
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, United States
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Paris Brain Institute, ICM, Pitié-Salpêtrière Hospital, Sorbonne University, Paris, France
- Neurodegenerative Disorder Research Center, Division of Life Sciences and Medicine, and Department of Neurology, Institute on Aging and Brain Disorders, University of Science and Technology of China and First Affiliated Hospital of USTC, Hefei, China
| | - Oriol Grau-Rivera
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- Hospital del Mar Research Institute (IMIM), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable, Instituto de Salud Carlos III, Madrid, Spain
- Servei de Neurologia, Hospital del Mar, Barcelona, Spain
| | - Gonzalo Sánchez-Benavides
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- Hospital del Mar Research Institute (IMIM), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable, Instituto de Salud Carlos III, Madrid, Spain
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Bălăeţ M, Alhajraf F, Bourke NJ, Welch J, Razzaque J, Malhotra P, Hu MT, Hampshire A. Metacognitive accuracy differences in Parkinson's disease and REM sleep behavioral disorder relative to healthy controls. Front Neurol 2024; 15:1399313. [PMID: 38859970 PMCID: PMC11164050 DOI: 10.3389/fneur.2024.1399313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 05/15/2024] [Indexed: 06/12/2024] Open
Abstract
Background Metacognition is the ability to monitor and self-assess cognitive performance. It can be impaired in neurodegenerative diseases, with implications for daily function, and the ability of patients to reliably report their symptoms to health professionals. However, metacognition has not been systematically assessed in early-mid stage Parkinson's disease (PD) and REM sleep behavioral disorder (RBD), a prodrome of PD. Objectives This study aimed to evaluate metacognitive accuracy and self-confidence in PD and RBD patients across various cognitive tasks. Methods We conducted detailed computerized cognitive assessments with 19 cognitive tasks within an established PD and RBD cohort. Participants self-rated their performance post-task. Metacognitive accuracy was calculated by comparing these ratings against objective performance and further analyzed against clinical and mental health factors. Results PD and RBD patients' metacognitive accuracy aligned with control subjects. However, they exhibited lower confidence across cognitive domains, reflecting their reduced cognitive performance. A notable inverse correlation was observed between their confidence and MDS-UPDRS I and II scales and HADS anxiety and depression scores. Conclusion Our findings indicate that patients with early to mid-stage PD and RBD are generally aware of their cognitive status, differing from other neurological disorders. The inverse relationship between patient confidence and symptoms of depression, anxiety, and daily life challenges underscores the impact of emotional and functional difficulties on their self-perception of cognitive abilities. This insight could be significant for understanding how these conditions affect mental health, aiding clinicians in developing more effective patient care strategies.
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Affiliation(s)
- Maria Bălăeţ
- Department of Brain Sciences, Imperial College London, London, United Kingdom
| | - Falah Alhajraf
- Oxford Parkinson’s Disease Centre, Nuffield Department Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - Niall J. Bourke
- Department of Brain Sciences, Imperial College London, London, United Kingdom
- Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Jessica Welch
- Oxford Parkinson’s Disease Centre, Nuffield Department Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - Jamil Razzaque
- Oxford Parkinson’s Disease Centre, Nuffield Department Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - Paresh Malhotra
- Department of Brain Sciences, Imperial College London, London, United Kingdom
| | - Michele T. Hu
- Oxford Parkinson’s Disease Centre, Nuffield Department Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | - Adam Hampshire
- Department of Brain Sciences, Imperial College London, London, United Kingdom
- Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
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Latgé-Tovar S, Bertrand E, Piolino P, Mograbi DC. The use of virtual reality as a perspective-taking manipulation to improve self-awareness in Alzheimer's disease. Front Aging Neurosci 2024; 16:1376413. [PMID: 38725536 PMCID: PMC11079167 DOI: 10.3389/fnagi.2024.1376413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/08/2024] [Indexed: 05/12/2024] Open
Abstract
Lack of awareness of symptoms or having a condition referred to as anosognosia is a common feature of individuals with Alzheimer's Disease (AD). Previous literature on AD reported difficulties in evaluating self-abilities, often showing underestimation of limitations. There is increasing evidence that the perspective through which information is presented may moderate the performance appraisal and that anosognosia in AD might be a consequence of a deficit in assuming a third-person perspective. In this context, some studies showed that subjects may better recognize self-and other-difficulties when exposed to a third-person perspective. Considering the variety of approaches aiming to investigate the lack of awareness, there is still a scarcity of methods that provide great ecological validity and consider more than one facet of awareness, thus failing to offer more accurate evaluations of daily experiences. The present paper primarily addresses the theme of the multidimensional character of awareness of abilities in AD and the effect of perspective-taking on its trajectories. The focus turns to virtual reality as a promising tool for a greater evaluation of perspective-taking and self-awareness. Particularly, these systems offer the possibility to involve users in cognitive and sensorimotor tasks that simulate daily life conditions within immersive and realistic environments, and a great sense of embodiment. We propose that virtual reality might allow a great level of complexity, veracity, and safety that is needed for individuals with AD to behave according to their actual abilities and enable to explore the liaison between the subject's viewpoint, performance, and self-evaluation. In addition, we suggest promising clinical implications of virtual reality-based methods for individualized assessments, investigating specific impacts on subjects' life and possible improvements in their awareness.
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Affiliation(s)
- Sofia Latgé-Tovar
- Institute of Psychiatry - Center for Alzheimer’s Disease, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Elodie Bertrand
- Laboratoire Mémoire, Cerveau et Cognition (LMC), Institut de Psychologie, Université Paris Cité, Paris, France
| | - Pascale Piolino
- Laboratoire Mémoire, Cerveau et Cognition (LMC), Institut de Psychologie, Université Paris Cité, Paris, France
| | - Daniel C. Mograbi
- Institute of Psychiatry - Center for Alzheimer’s Disease, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Psychology, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Psychiatry – Psychology and Neuroscience King’s College London, London, United Kingdom
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Bueichekú E, Diez I, Gagliardi G, Kim CM, Mimmack K, Sepulcre J, Vannini P. Multi-modal Neuroimaging Phenotyping of Mnemonic Anosognosia in the Aging Brain. COMMUNICATIONS MEDICINE 2024; 4:65. [PMID: 38580832 PMCID: PMC10997795 DOI: 10.1038/s43856-024-00497-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 03/28/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND Unawareness is a behavioral condition characterized by a lack of self-awareness of objective memory decline. In the context of Alzheimer's Disease (AD), unawareness may develop in predementia stages and contributes to disease severity and progression. Here, we use in-vivo multi-modal neuroimaging to profile the brain phenotype of individuals presenting altered self-awareness of memory during aging. METHODS Amyloid- and tau-PET (N = 335) and resting-state functional MRI (N = 713) imaging data of individuals from the Anti-Amyloid Treatment in Asymptomatic Alzheimer's Disease (A4)/Longitudinal Evaluation of Amyloid Risk and Neurodegeneration (LEARN) Study were used in this research. We applied whole-brain voxel-wise and region-of-interest analyses to characterize the cortical intersections of tau, amyloid, and functional connectivity networks underlying unawareness in the aging brain compared to aware, complainer and control groups. RESULTS Individuals with unawareness present elevated amyloid and tau burden in midline core regions of the default mode network compared to aware, complainer or control individuals. Unawareness is characterized by an altered network connectivity pattern featuring hyperconnectivity in the medial anterior prefrontal cortex and posterior occipito-parietal regions co-locating with amyloid and tau deposition. CONCLUSIONS Unawareness is an early behavioral biomarker of AD pathology. Failure of the self-referential system in unawareness of memory decline can be linked to amyloid and tau burden, along with functional network connectivity disruptions, in several medial frontal and parieto-occipital areas of the human brain.
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Affiliation(s)
- Elisenda Bueichekú
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Ibai Diez
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Geoffroy Gagliardi
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Chan-Mi Kim
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Kayden Mimmack
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jorge Sepulcre
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA.
- Department of Radiology, Yale PET Center, Yale Medical School, Yale University, New Haven, CT, USA.
| | - Patrizia Vannini
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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Gott JA, Stücker S, Kanske P, Haaker J, Dresler M. Acetylcholine and metacognition during sleep. Conscious Cogn 2024; 117:103608. [PMID: 38042119 DOI: 10.1016/j.concog.2023.103608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 10/03/2023] [Accepted: 11/16/2023] [Indexed: 12/04/2023]
Abstract
Acetylcholine is a neurotransmitter and neuromodulator involved in a variety of cognitive functions. Additionally, acetylcholine is involved in the regulation of REM sleep: cholinergic neurons in the brainstem and basal forebrain project to and innervate wide areas of the cerebral cortex, and reciprocally interact with other neuromodulatory systems, to produce the sleep-wake cycle and different sleep stages. Consciousness and cognition vary considerably across and within sleep stages, with metacognitive capacity being strikingly reduced even during aesthetically and emotionally rich dream experiences. A notable exception is the phenomenon of lucid dreaming-a rare state whereby waking levels of metacognitive awareness are restored during sleep-resulting in individuals becoming aware of the fact that they are dreaming. The role of neurotransmitters in these fluctuations of consciousness and cognition during sleep is still poorly understood. While recent studies using acetylcholinesterase inhibitors suggest a potential role of acetylcholine in the occurrence of lucid dreaming, the underlying mechanisms by which this effect is produced remains un-modelled and unknown; with the causal link between cholinergic mechanisms and upstream psychological states being complex and elusive. Several theories and approaches targeting the association between acetylcholine and metacognition during wakefulness and sleep are highlighted in this review, moving through microscopic, mesoscopic and macroscopic levels of analysis to detail this phenomenon at several organisational scales. Several exploratory hypotheses will be developed to guide future research towards fully articulating how metacognition is affected by activity at the acetylcholine receptor.
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Affiliation(s)
- Jarrod A Gott
- Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Sina Stücker
- Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Philipp Kanske
- Clinical Psychology and Behavioral Neuroscience, Faculty of Psychology, Technische Universität Dresden, Dresden, Germany
| | - Jan Haaker
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Dresler
- Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands.
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Alexander CM, Martyr A, Gamble LD, Quinn C, Pentecost C, Morris RG, Clare L. Dyadic influences on awareness of condition in people with dementia: findings from the IDEAL cohort. Front Aging Neurosci 2023; 15:1277336. [PMID: 38146375 PMCID: PMC10749333 DOI: 10.3389/fnagi.2023.1277336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/20/2023] [Indexed: 12/27/2023] Open
Abstract
Introduction The discrepancy between caregiver-ratings and self-ratings of abilities is commonly used to assess awareness in people with dementia. We investigated the contribution of caregiver and dyadic characteristics to the difference in perspective between caregiver-informants and people with dementia about difficulties experienced, when considering awareness of condition. Methods We conducted exploratory cross-sectional analyses using data from the IDEAL cohort. Participants were 1,038 community-dwelling people with mild-to-moderate dementia, and coresident spouse/partner caregivers. The Representations and Adjustment to Dementia Index (RADIX) checklist reporting difficulties commonly experienced in dementia was completed by 960 caregiver-informants and 989 people with dementia. Difference in scores was calculated for 916 dyads. Demographic information, cognition, informant-rated functional ability and neuropsychiatric symptoms were recorded for the person with dementia. Self-reported data were collected on mood, comorbidity, religion, importance of religion, relationship quality, and caregiver stress. Results For most dyads, caregivers reported more RADIX difficulties than people with dementia. Caregiver RADIX ratings were more closely associated with informant-rated functional ability and neuropsychiatric symptoms than with cognition. More RADIX difficulties and higher stress were reported by female caregivers. Greater RADIX difference was associated with more caregiver stress, and older age but less depression in people with dementia. Conclusion Few dyadic characteristics were important, but caregiver stress was higher where caregivers reported more RADIX difficulties and/or the difference in perspective was greater, whereas partners with dementia reported better mood. In addition to offering information about awareness of condition, the caregiver rating and difference in perspectives could indicate where more support is needed.
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Affiliation(s)
- Catherine M. Alexander
- The Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, Exeter, United Kingdom
- NIHR Applied Research Collaboration South West Peninsula, Exeter, United Kingdom
| | - Anthony Martyr
- The Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, Exeter, United Kingdom
| | - Laura D. Gamble
- Population Health Sciences Institute, Newcastle upon Tyne University, Newcastle, United Kingdom
| | - Catherine Quinn
- Centre for Applied Dementia Studies, University of Bradford, Bradford, United Kingdom
- Wolfson Centre for Applied Health Research, Bradford, United Kingdom
| | - Claire Pentecost
- The Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, Exeter, United Kingdom
| | - Robin G. Morris
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Linda Clare
- The Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, Exeter, United Kingdom
- NIHR Applied Research Collaboration South West Peninsula, Exeter, United Kingdom
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Harvey PD, Strassnig A, Strassnig M, Heaton A, Kuehn K, Torre P, Sundermann EE, Pinkham A, Depp CA, Black G, Wharton W, Waldrop D, Anderson AM, Moore RC. Mild Cognitive Impairment, But Not HIV Status, is Related to Reduced Awareness of Level of Cognitive Performance Among Older Adults. Am J Geriatr Psychiatry 2023; 31:1117-1128. [PMID: 37544836 PMCID: PMC10732243 DOI: 10.1016/j.jagp.2023.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 08/08/2023]
Abstract
OBJECTIVE Self-assessment of cognitive abilities can be an important predictor of clinical outcomes. This study examined impairments in self-assessments of cognitive performance, assessed with traditional neuropsychological assessments and novel virtual reality tests among older persons with and without human immunodeficiency virus (HIV) and mild cognitive impairment (MCI). METHODS One hundred twenty-two participants (82 persons with HIV; 79 MCI+) completed a traditional neuropsychological battery, DETECT virtual reality cognitive battery, and self-reported their general cognitive complaints, depressive symptoms, and perceptions of DETECT performance. Relationships between DETECT performance and self-assessments of performance were examined as were the correlations between general cognitive complaints and performance. These relations were evaluated across HIV and MCI status, considering the associations of depressive symptoms, performance, and self-assessment. RESULTS We found no effect of HIV status on objective performance or self-assessment of DETECT performance. However, MCI+ participants performed worse on DETECT and traditional cognitive tests, while also showing a directional bias towards overestimation of their performance. MCI- participants showed a bias toward underestimation. Cognitive complaints were reduced compared to objective performance in MCI+ participants. Correlations between self-reported depressive symptoms and cognitive performance or self-assessment of performance were nonsignificant. CONCLUSIONS MCI+ participants underperformed on neuropsychological testing, while overestimating performance. Interestingly, MCI- participants underestimated performance to approximately the same extent as MCI+ participants overestimated. Practical implications include providing support for persons with MCI regarding awareness of limitations and consideration that self-assessments of cognitive performance may be overestimated. Similarly, supporting older persons without MCI to realistically appraise their abilities may have clinical importance.
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Affiliation(s)
- Philip D Harvey
- Department of Psychiatry and Behavioral Sciences (PDH, MS), Miller School of Medicine, University of Miami, Miami, FL; Research Service (PDH), Miami VA Healthcare System, Miami, FL
| | | | - Martin Strassnig
- Department of Psychiatry and Behavioral Sciences (PDH, MS), Miller School of Medicine, University of Miami, Miami, FL
| | - Anne Heaton
- Department of Psychiatry (AH, ESS, CAD, RCM), University of California San Diego, San Diego, CA
| | - Kevin Kuehn
- Department of Medicine (KK), University of California San Diego, San Diego, CA
| | - Peter Torre
- School of Speech, Language, and Hearing Sciences (PT), San Diego State University, San Diego, CA
| | - Erin E Sundermann
- Department of Psychiatry (AH, ESS, CAD, RCM), University of California San Diego, San Diego, CA
| | - Amy Pinkham
- School of Behavioral and Brain Sciences (AP), The University of Texas at Dallas, Richardson, TX
| | - Colin A Depp
- Department of Psychiatry (AH, ESS, CAD, RCM), University of California San Diego, San Diego, CA; VA San Diego Healthcare System (CAD), San Diego, CA
| | | | | | | | | | - Raeanne C Moore
- Department of Psychiatry (AH, ESS, CAD, RCM), University of California San Diego, San Diego, CA.
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Shadpour S, Shafqat A, Toy S, Jing Z, Attwood K, Moussavi Z, Shafiei SB. Developing cognitive workload and performance evaluation models using functional brain network analysis. NPJ AGING 2023; 9:22. [PMID: 37803137 PMCID: PMC10558559 DOI: 10.1038/s41514-023-00119-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 08/10/2023] [Indexed: 10/08/2023]
Abstract
Cognition, defined as the ability to learn, remember, sustain attention, make decisions, and solve problems, is essential in daily activities and in learning new skills. The purpose of this study was to develop cognitive workload and performance evaluation models using features that were extracted from Electroencephalogram (EEG) data through functional brain network and spectral analyses. The EEG data were recorded from 124 brain areas of 26 healthy participants conducting two cognitive tasks on a robot simulator. The functional brain network and Power Spectral Density features were extracted from EEG data using coherence and spectral analyses, respectively. Participants reported their perceived cognitive workload using the SURG-TLX questionnaire after each exercise, and the simulator generated actual performance scores. The extracted features, actual performance scores, and subjectively assessed cognitive workload values were used to develop linear models for evaluating performance and cognitive workload. Furthermore, the Pearson correlation was used to find the correlation between participants' age, performance, and cognitive workload. The findings demonstrated that combined EEG features retrieved from spectral analysis and functional brain networks can be used to evaluate cognitive workload and performance. The cognitive workload in conducting only Matchboard level 3, which is more challenging than Matchboard level 2, was correlated with age (0.54, p-value = 0.01). This finding may suggest playing more challenging computer games are more helpful in identifying changes in cognitive workload caused by aging. The findings could open the door for a new era of objective evaluation and monitoring of cognitive workload and performance.
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Affiliation(s)
- Saeed Shadpour
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Ambreen Shafqat
- Intelligent Cancer Care Laboratory, Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Serkan Toy
- Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA, 24016, USA
| | - Zhe Jing
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Kristopher Attwood
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Zahra Moussavi
- Department of Electrical and Computer Engineering & Biomedical Engineering Program and Department of Psychiatry, University of Manitoba, Winnipeg, Manitoba, R3T 5V6, Canada
| | - Somayeh B Shafiei
- Intelligent Cancer Care Laboratory, Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA.
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10
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Hammink JHWC, Moor JAN, Mohammadi MM. Influencing health behaviour using smart building interventions for people with dementia and mild cognitive impairment: expert interviews and a systematic literature review. Disabil Rehabil Assist Technol 2023; 18:1175-1191. [PMID: 34731590 DOI: 10.1080/17483107.2021.1994032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 10/11/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE Behaviour can have an influence on (coping with) chronic conditions such as dementia. Assistive technology can stimulate the daily behaviour of people with dementia, but the mechanisms through which this happens are unclear. Therefore, this paper focuses on potential behaviour change mechanisms, that can be employed in smart building interventions for people with dementia or MCI. METHODS This research uses expert interviews with medical experts (n = 9) and a systematic literature review of smart building interventions stimulating health behaviour (n = 12). RESULTS Results show how facilitation, incentive motivation (i.e., feedback), observational learning and self-efficacy are most promising according to medical experts; if they are appropriately personalised towards needs, preferences as well as abilities. The literature review shows how most of the examined research uses facilitation and incentive motivation to stimulate behaviour. Although positive results are reported in all studies, methodological quality could be improved. CONCLUSION For the design of smart building interventions for people with MCI or dementia, facilitation and incentive motivation seem to be promising behaviour change mechanisms. Outcome expectation, observational learning and self-efficacy could reinforcing the aforementioned mechanisms. Future research should focus on how different (environmental, digital) cues can be personalized and can adapt over time, as dementia progresses.IMPLICATIONS FOR REHABILITATIONAssistive technology for people with dementia can have an effect on (health) behaviour, which may in turn influence coping strategies or quality of life.Behaviour change mechanisms can inform the design of assistive technology such as smart building interventions.Facilitation, Incentive Motivation, Observational Learning and Self-efficacy seem promising behaviour change mechanisms for people with dementia or MCI.In any intervention for people with dementia, personalized and adaptable cues are of vital importance.
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Affiliation(s)
- J H W Coosje Hammink
- Research Group Architecture in Health, HAN University of Applied Sciences, Arnhem, The Netherlands
| | - J A Nienke Moor
- Research Group Architecture in Health, HAN University of Applied Sciences, Arnhem, The Netherlands
| | - M Masi Mohammadi
- Research Group Architecture in Health, HAN University of Applied Sciences, Arnhem, The Netherlands
- Smart Architectural Technologies, Eindhoven University of Technology, Eindhoven, The Netherlands
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11
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Balconi M, Angioletti L, Acconito C. Self-Awareness of Goals Task (SAGT) and Planning Skills: The Neuroscience of Decision Making. Brain Sci 2023; 13:1163. [PMID: 37626519 PMCID: PMC10452128 DOI: 10.3390/brainsci13081163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/24/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
A goal's self-awareness and the planning to achieve it drive decision makers. Through a neuroscientific approach, this study explores the self-awareness of goals by analyzing the explicit and implicit processes linked to the ability to self-represent goals and sort them via an implicit dominant key. Thirty-five professionals performed a novel and ecological decision-making task, the Self-Awareness of Goals Task (SAGT), aimed at exploring the (i) self-representation of the decision-making goals of a typical working day; (ii) self-representation of how these goals were performed in order of priority; (iii) temporal sequence; and (iv) in terms of their efficacy. Electrophysiological (i.e., alpha, beta, and gamma band), autonomic, behavioral, and self-report data (General Decision Making Style and Big Five Inventory) are collected. Higher self-awareness of goals by time as well as efficacy and the greater activation of alpha, beta, and gamma bands in the temporoparietal brain area were found. Correlations reported positive associations between the self-awareness of goals via a time and dependent decision-making style and a conscientious personality, but also between the self-awareness of goals via an efficacy and rational decision-making style. The results obtained in this study suggest that the SAGT could activate recursive thinking in the examinee and grasp individual differences in self-representation and aware identification of decision-making goals.
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Affiliation(s)
- Michela Balconi
- International Research Center for Cognitive Applied Neuroscience (IrcCAN), Catholic University of the Sacred Heart, Largo Gemelli 1, 20123 Milan, Italy; (M.B.); (C.A.)
- Research Unit in Affective and Social Neuroscience, Department of Psychology, Catholic University of the Sacred Heart, Largo Gemelli 1, 20123 Milan, Italy
| | - Laura Angioletti
- International Research Center for Cognitive Applied Neuroscience (IrcCAN), Catholic University of the Sacred Heart, Largo Gemelli 1, 20123 Milan, Italy; (M.B.); (C.A.)
- Research Unit in Affective and Social Neuroscience, Department of Psychology, Catholic University of the Sacred Heart, Largo Gemelli 1, 20123 Milan, Italy
| | - Carlotta Acconito
- International Research Center for Cognitive Applied Neuroscience (IrcCAN), Catholic University of the Sacred Heart, Largo Gemelli 1, 20123 Milan, Italy; (M.B.); (C.A.)
- Research Unit in Affective and Social Neuroscience, Department of Psychology, Catholic University of the Sacred Heart, Largo Gemelli 1, 20123 Milan, Italy
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12
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Heikkinen AL, Paajanen TI, Hublin C, Valtonen T, Krüger J, Tikkanen V, Saari T, Koivisto AM, Hänninen T, Remes AM. The Cognitive Function at Work Questionnaire in memory clinic setting: a validation study. J Clin Exp Neuropsychol 2023; 45:365-376. [PMID: 37561064 DOI: 10.1080/13803395.2023.2239508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 07/14/2023] [Indexed: 08/11/2023]
Abstract
INTRODUCTION As there is a trend toward more people seeking medical help due to cognitive symptoms, validated and targeted questionnaires are increasingly important in the clinical evaluation process. The Cognitive Function at Work Questionnaire (CFWQ) was developed to identify and rate subjective cognitive symptoms of individuals active in working life. However, its psychometric characteristics have not been previously studied in a memory clinic setting. METHOD The factorial structure, internal consistency, test-retest reliability, and convergent validity of the CFWQ were studied in a memory clinic setting (N = 113). We also investigated the instrument's ability to identify cognitive symptoms in a cohort of early-onset dementia (EOD, N = 22), mild cognitive impairment-neurological (MCI-n, N = 18), MCI due to mood, sleep, or other physical health problems (MCI-o, N = 59), and subjective cognitive decline (SCD, N = 14) patients. RESULTS Based on factor analysis, eight cognitive subscales were identified covering main cognitive domains: Memory, Language, Executive Function, Speed of Processing, Cognitive Control, Name Memory, Visuospatial/Praxis and Attention. The internal consistency (α = .93) and the test-retest reliability (ICC = .91) were high. Several correlations (r = .19 - .33, p < .05) were documented between neuropsychological impairment level and CFWQ scores. EOD, MCI-n, MCI-o, and SCD groups did not differ statistically significantly in the levels of cognitive symptoms as measured by the CFWQ Total score. EOD group scored higher (p = .009) than other patient groups on the Visuospatial/Praxis subscale, but the difference between EOD and MCI-o groups turned insignificant after correcting for multiple testing. CONCLUSIONS The results of the study support the validity and reliability characteristics of the CFWQ in a memory clinic setting. The instrument is easy-to-use and has clinical utility in capturing the subjective cognitive symptoms of patients active in working life and who need a referral to a more detailed evaluation.
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Affiliation(s)
- Anna-Leena Heikkinen
- Research Unit of Clinical Medicine, Neurology, University of Oulu, Oulu, Finland
- MRC, Oulu University Hospital, Oulu, Finland
- Neurocenter, Neurology, Oulu University Hospital, Oulu, Finland
- Work Ability and Working Careers, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Teemu I Paajanen
- Work Ability and Working Careers, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Christer Hublin
- Work Ability and Working Careers, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Teppo Valtonen
- Work Ability and Working Careers, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Johanna Krüger
- Research Unit of Clinical Medicine, Neurology, University of Oulu, Oulu, Finland
- MRC, Oulu University Hospital, Oulu, Finland
- Neurocenter, Neurology, Oulu University Hospital, Oulu, Finland
| | - Veera Tikkanen
- Research Unit of Clinical Medicine, Neurology, University of Oulu, Oulu, Finland
- MRC, Oulu University Hospital, Oulu, Finland
- Neurocenter, Neurology, Oulu University Hospital, Oulu, Finland
| | - Toni Saari
- Neurocenter, Neurology, Kuopio University Hospital, Kuopio, Finland
- Unit of Neurology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - Anne M Koivisto
- Neurocenter, Neurology, Kuopio University Hospital, Kuopio, Finland
- Unit of Neurology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
- Department of Geriatrics, Helsinki University Hospital, Helsinki, Finland
- Clinical Neurosciences, University of Helsinki, Helsinki, Finland
| | - Tuomo Hänninen
- Neurocenter, Neurology, Kuopio University Hospital, Kuopio, Finland
| | - Anne M Remes
- Research Unit of Clinical Medicine, Neurology, University of Oulu, Oulu, Finland
- MRC, Oulu University Hospital, Oulu, Finland
- Neurocenter, Neurology, Oulu University Hospital, Oulu, Finland
- Clinical Neurosciences, University of Helsinki, Helsinki, Finland
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13
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Fidder H, Veenhuizen RB, Gerridzen IJ, van Wieringen WN, Smalbrugge M, Hertogh CMPM, van Loon AM. Impaired Awareness in People with Severe Alcohol-Related Cognitive Deficits Including Korskoff's Syndrome: A Network Analysis. J Clin Med 2023; 12:jcm12093139. [PMID: 37176580 PMCID: PMC10178999 DOI: 10.3390/jcm12093139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/13/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND Impaired awareness of one's own functioning is highly common in people with Korsakoff's syndrome (KS). However, it is currently unclear how awareness relates to impairments in daily functioning and quality of life (QoL). METHODS We assessed how impaired awareness relates to cognitive, behavioral, physical, and social functioning and QoL by applying a network analysis. We used cross-sectional data from 215 patients with KS or other severe alcohol-related cognitive deficits living in Dutch long-term care facilities (LTCFs). RESULTS Apathy has the most central position in the network. Higher apathy scores relate positively to reduced cognition and to a greater decline in activities of daily living and negatively to social participation and the use of antipsychotic drugs. Impaired awareness is also a central node. It is positively related to a higher perceived QoL, reduced cognition and apathy, and negatively to social participation and length of stay in the LTCF. Mediated through apathy and social participation, impaired awareness is indirectly related to other neuropsychiatric symptoms. CONCLUSIONS Impaired awareness is closely related to other domains of daily functioning and QoL of people with KS or other severe alcohol-related cognitive deficits living in LTCFs. Apathy plays a central role. Network analysis offers interesting insights to evaluate the interconnection of different symptoms and impairments in brain disorders such as KS.
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Affiliation(s)
- Hester Fidder
- Department of Medicine for Older People, Amsterdam Public Health Research Institute, Amsterdam University Medical Center, De Boelelaan 1109, 1081 HV Amsterdam, The Netherlands
| | - Ruth B Veenhuizen
- Department of Medicine for Older People, Amsterdam Public Health Research Institute, Amsterdam University Medical Center, De Boelelaan 1109, 1081 HV Amsterdam, The Netherlands
- Atlant, Nursing Home Markenhof, Korsakoff Centre of Expertise, Kuiltjesweg 1, 7361 TC Beekbergen, The Netherlands
| | - Ineke J Gerridzen
- Department of Medicine for Older People, Amsterdam Public Health Research Institute, Amsterdam University Medical Center, De Boelelaan 1109, 1081 HV Amsterdam, The Netherlands
- Atlant, Nursing Home Markenhof, Korsakoff Centre of Expertise, Kuiltjesweg 1, 7361 TC Beekbergen, The Netherlands
| | - Wessel N van Wieringen
- Department of Epidemiology and Biostatistics, Amsterdam Public Health Research Institute, Amsterdam University Medical Center, De Boelelaan 1081a, 1081 HV Amsterdam, The Netherlands
| | - Martin Smalbrugge
- Department of Medicine for Older People, Amsterdam Public Health Research Institute, Amsterdam University Medical Center, De Boelelaan 1109, 1081 HV Amsterdam, The Netherlands
| | - Cees M P M Hertogh
- Department of Medicine for Older People, Amsterdam Public Health Research Institute, Amsterdam University Medical Center, De Boelelaan 1109, 1081 HV Amsterdam, The Netherlands
| | - Anouk M van Loon
- Department of Medicine for Older People, Amsterdam Public Health Research Institute, Amsterdam University Medical Center, De Boelelaan 1109, 1081 HV Amsterdam, The Netherlands
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14
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Benson C, Fehland J, Botsch M, Block L, Gilmore-Bykovskyi A. The Impact of Episodes of Lucidity on People Living With Dementia and Their Caregivers: A Case Report. Alzheimer Dis Assoc Disord 2023; 37:142-144. [PMID: 36988619 PMCID: PMC10238644 DOI: 10.1097/wad.0000000000000553] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/30/2023] [Indexed: 03/30/2023]
Abstract
People living with dementia (PLWD) may experience the episodes of lucidity (ELs), defined as a sudden return of abilities presumed to have been lost and presenting as meaningful communication and connection. Early research on ELs in advanced disease stages suggests these are predominantly positive events. This case report draws from 1 outlier case from a descriptive qualitative study on caregivers of PLWDs' experiences with ELs. The caregiver-reported events perceived as an EL being accompanied with unexpected self-awareness, leading to a negative emotional reaction and feelings of loss. This case report contributes insights to the current understandings of ELs as exclusively relevant in advanced stages of dementia, as similar events may present in earlier disease stages, and may be associated with the negative emotional experiences among PLWD. Future research is needed to consider the ethical implications surrounding ELs and to support the caregivers in anticipating and responding to ELs.
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Affiliation(s)
| | | | | | - Laura Block
- BerbeeWalsh Department of Emergency Medicine
| | - Andrea Gilmore-Bykovskyi
- BerbeeWalsh Department of Emergency Medicine
- Center for Health Disparities Research, University of Wisconsin-Madison School of Medicine & Public Health, Madison, WI
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15
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Leocadi M, Canu E, Paldino A, Agosta F, Filippi M. Awareness impairment in Alzheimer's disease and frontotemporal dementia: a systematic MRI review. J Neurol 2023; 270:1880-1907. [PMID: 36512063 DOI: 10.1007/s00415-022-11518-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 12/15/2022]
Abstract
This review aims to define awareness impairment and related disturbances in neurodegenerative diseases, including Alzheimer's disease (AD) and frontotemporal lobar degeneration (FTLD) spectrum of disorders. An update of the available scientific literature on the use of magnetic resonance imaging (MRI) in the study of awareness in these disorders is also offered. MRI plays an important role in the characterization of neurodegenerative signatures and can increase our knowledge on brain structural and functional correlates of awareness. In the reviewing process, we established a-priori criteria and we searched the scientific literature for relevant articles on this topic. In summary, we selected 36 articles out of 1340 publications retrieved from PubMed. Based on this selection, this review discusses the multiple terms used to define different or overlapping aspects of awareness impairment, and specifically summarizes recent application of MRI for investigating anosognosia, social cognition, including theory of mind and emotional processing, free will, and autonoetic awareness alterations in different neurodegenerative disorders, with most of these studies focused on AD and FTLD. This systematic review highlights the importance of awareness impairment and related domains in neurodegenerative disorders, especially in AD and FTLD, and it outlines MRI structural and functional correlates in these populations.
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Affiliation(s)
- Michela Leocadi
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Elisa Canu
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
| | - Angela Paldino
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Federica Agosta
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy.
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Neurophysiology Service, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Vita-Salute San Raffaele University, Milan, Italy.
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16
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McLaren JE, Shin MH, Moo LR. Poor insight and future thinking in early dementia limit patient projections of potential utility of technological innovations and advanced care planning. Front Med (Lausanne) 2023; 10:1123331. [PMID: 36993808 PMCID: PMC10040527 DOI: 10.3389/fmed.2023.1123331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/13/2023] [Indexed: 03/14/2023] Open
Abstract
IntroductionCognitive psychology posits that thinking about the future relies on memory such that those with memory impairment may have trouble imaging their future technology and other needs.MethodsWe conducted a content analysis of qualitative data from interviews with six patients with MCI or early dementia regarding potential adaptations to a mobile telepresence robot. Using a matrix analysis approach, we explored perceptions of (1) what technology could help with day-to-day functioning in the present and future and (2) what technology may help people with memory problems or dementia stay home alone safely.ResultsVery few participants could identify any technology to assist themselves or other people with memory problems and could not provide suggestions on what technology may help them stay home alone safely. Most perceived that they would never need robotic assistance.DiscussionThese findings suggest individuals with MCI or early dementia have limited perspectives on their own functional abilities now and in the future. Consideration of the individuals’ diminished understanding of their own future illness trajectory is crucial when engaging in research or considering novel technological management solutions and may have implications for other aspects of advanced care planning.
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Affiliation(s)
- Jaye E. McLaren
- New England Geriatric Research Education and Clinical Center, Veterans Affairs Bedford Healthcare System, Bedford, MA, United States
- *Correspondence: Jaye E. McLaren,
| | - Marlena H. Shin
- Center for Healthcare Organization and Implementation Research, Veterans Affairs Boston Healthcare System, Boston, MA, United States
| | - Lauren R. Moo
- New England Geriatric Research Education and Clinical Center, Veterans Affairs Bedford Healthcare System, Bedford, MA, United States
- Center for Healthcare Organization and Implementation Research, Veterans Affairs Bedford Healthcare System, Bedford, MA, United States
- Harvard Medical School, Boston, MA, United States
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
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17
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Guieysse T, Lamothe R, Houot M, Razafimahatratra S, Medani T, Lejeune FX, Dreyfus G, Klarsfeld A, Pantazis D, Koechlin E, Andrade K. Detecting Anosognosia from the Prodromal Stage of Alzheimer's Disease. J Alzheimers Dis 2023; 95:1723-1733. [PMID: 37718816 PMCID: PMC10578267 DOI: 10.3233/jad-230552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2023] [Indexed: 09/19/2023]
Abstract
BACKGROUND Though not originally developed for this purpose, the Healthy Aging Brain Care Monitor (HABC-M) seems a valuable instrument for assessing anosognosia in Alzheimer's disease (AD). OBJECTIVES Our study aimed at 1) investigating the validity of the HABC-M (31 items), and its cognitive, psychological, and functional subscales, in discriminating AD patients from controls; 2) exploring whether the HABC-M discrepancy scores between the self-reports of patients/controls in these different domains and the respective ratings provided by their caregivers/informants correlate with an online measure of self-awareness; 3) determining whether the caregiver burden level, also derived from the HABC-M, could add additional support for detecting anosognosia. METHODS The HABC-M was administered to 30 AD patients and 30 healthy controls, and to their caregivers/informants. A measure of online awareness was established from subjects' estimation of their performances in a computerized experiment. RESULTS The HABC-M discrepancy scores distinguished AD patients from controls. The cognitive subscale discriminated the two groups from the prodromal AD stage, with an AUC of 0.88 [95% CI: 0.78;0.97]. Adding the caregiver burden level raised it to 0.94 [0.86;0.99]. Significant correlations between the HABC-M and online discrepancy scores were observed in the patients group, providing convergent validity of these methods. CONCLUSIONS The cognitive HABC-M (six items) can detect anosognosia across the AD spectrum. The caregiver burden (four items) may corroborate the suspicion of anosognosia. The short-hybrid scale, built from these 10 items instead of the usual 31, showed the highest sensitivity for detecting anosognosia from the prodromal AD stage, which may further help with timely diagnosis.
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Affiliation(s)
- Thomas Guieysse
- Department of Neurology, Institute of Memory and Alzheimer’s Disease (IM2A), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Roxane Lamothe
- Department of Neurology, Institute of Memory and Alzheimer’s Disease (IM2A), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Marion Houot
- Department of Neurology, Institute of Memory and Alzheimer’s Disease (IM2A), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
- Centre of Excellence of Neurodegenerative Disease (CoEN), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Solofo Razafimahatratra
- Department of Neurology, Institute of Memory and Alzheimer’s Disease (IM2A), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Takfarinas Medani
- Signal & Image Processing Institute, University of Southern California, Los Angeles, CA, USA
| | - François-Xavier Lejeune
- Paris Brain Institute (Institut du Cerveau, ICM), Data Analysis Core, INSERM, CNRS, Assistance Publique-Hôpitaux de Paris (AP-HP), Sorbonne Université, Pitié-Salpêtrière University Hospital, Paris, France
| | | | - André Klarsfeld
- Laboratory of Brain Plasticity, CNRS UMR 8249, ESPCI Paris - PSL, Paris, France
| | - Dimitrios Pantazis
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Etienne Koechlin
- Laboratoire de Neurosciences Cognitives et Computationnelles, École Normale Supérieure, Paris, France
| | - Katia Andrade
- Department of Neurology, Institute of Memory and Alzheimer’s Disease (IM2A), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
- Laboratory of Brain Plasticity, CNRS UMR 8249, ESPCI Paris - PSL, Paris, France
- FrontLab, Paris Brain Institute, ICM, Pitié Salpêtrière GH, Paris, France
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18
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van Roessel PJ, Marzke C, Varias AD, Mukunda P, Asgari S, Sanchez C, Shen H, Jo B, Gunaydin LA, Williams LM, Rodriguez CI. Anosognosia in hoarding disorder is predicted by alterations in cognitive and inhibitory control. Sci Rep 2022; 12:21752. [PMID: 36526652 PMCID: PMC9758191 DOI: 10.1038/s41598-022-25532-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022] Open
Abstract
Insight impairment contributes significantly to morbidity in psychiatric disorders. The neurologic concept of anosognosia, reflecting deficits in metacognitive awareness of illness, is increasingly understood as relevant to psychopathology, but has been little explored in psychiatric disorders other than schizophrenia. We explored anosognosia as an aspect of insight impairment in n = 71 individuals with DSM-5 hoarding disorder. We used a standardized clutter severity measure to assess whether individuals with hoarding disorder underreport home clutter levels relative to independent examiners. We then explored whether underreporting, as a proxy for anosognosia, is predicted by clinical or neurocognitive behavioral measures. We found that individuals with hoarding disorder underreport their clutter, and that underreporting is predicted by objective severity of clutter. In an n = 53 subset of participants, we found that underreporting is predicted by altered performance on tests of cognitive control and inhibition, specifically Go/No-Go and Stroop tests. The relation of underreporting to objective clutter, the cardinal symptom of hoarding disorder, suggests that anosognosia may reflect core pathophysiology of the disorder. The neurocognitive predictors of clutter underreporting suggest that anosognosia in hoarding disorder shares a neural basis with metacognitive awareness deficits in other neuropsychiatric disorders and that executive anosognosia may be a transdiagnostic manifestation of psychopathology.
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Affiliation(s)
- Peter J. van Roessel
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA ,grid.280747.e0000 0004 0419 2556Sierra Pacific Mental Illness Research, Education, and Clinical Center (MIRECC), Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304 USA
| | - Cassandra Marzke
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA ,grid.266102.10000 0001 2297 6811Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Francisco, CA 94143 USA
| | - Andrea D. Varias
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA ,grid.265117.60000 0004 0623 6962Touro University College of Osteopathic Medicine, Vallejo, CA 94592 USA
| | - Pavithra Mukunda
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA
| | - Sepehr Asgari
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA
| | - Catherine Sanchez
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA
| | - Hanyang Shen
- grid.168010.e0000000419368956Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - Booil Jo
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA
| | - Lisa A. Gunaydin
- grid.266102.10000 0001 2297 6811Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Francisco, CA 94143 USA ,grid.266102.10000 0001 2297 6811Kavli Institute for Fundamental Neuroscience, University of California San Francisco, San Francisco, CA 94143 USA
| | - Leanne M. Williams
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA ,grid.280747.e0000 0004 0419 2556Sierra Pacific Mental Illness Research, Education, and Clinical Center (MIRECC), Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304 USA
| | - Carolyn I. Rodriguez
- grid.168010.e0000000419368956Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA ,grid.280747.e0000 0004 0419 2556Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304 USA
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19
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Lau SCL, Connor LT, Baum CM. Subjective and objective assessments are associated for physical function but not cognitive function in community-dwelling stroke survivors. Disabil Rehabil 2022; 44:8349-8356. [PMID: 34904503 DOI: 10.1080/09638288.2021.2012845] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
PURPOSE To investigate the relation between subjectively and objectively assessed cognitive and physical functioning among community-dwelling stroke survivors, and to examine the association of stroke severity with subjectively and objectively assessed cognitive and physical impairments. MATERIALS AND METHODS Secondary data analysis was conducted with 127 community-dwelling stroke survivors. For cognitive functioning, objective measures included the NIH Toolbox Cognition Battery and the Executive Function Performance Test; subjective measures included the Quality of Life in Neurological Disorders Applied Cognition. Objective and subjective physical functioning was measured by the NIH Toolbox 2-Minute Walk Test and the Patient-Reported Outcomes Measurement Information System Physical Function, respectively. RESULTS A positive correlation was observed between subjective and objective physical functioning, whereas the correlation between subjective and objective cognitive functioning was nonsignificant. Stroke severity was associated with objective cognitive impairment and objective and subjective physical impairment, but not subjective cognitive impairment. CONCLUSIONS The lack of association between objective and subjective cognitive functioning challenges the conventional assumption that perceived functioning reflects actual performance. We recommend using both objective and subjective measures to accurately identify cognitive and physical impairment following stroke.Implications for RehabilitationSubjective cognitive functioning is not associated with objective cognitive functioning, suggesting that solely relying on stroke patients' reports is inadequate and may inaccurately estimate patients' actual deficits.Both objective and subjective measures should be used to accurately identify cognitive and physical impairment following stroke.Practitioners should be cognizant of stroke patients' behavioral signs associated with underlying cognitive problems that warrant further evaluation.
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Affiliation(s)
- Stephen C L Lau
- Program in Occupational Therapy, Washington University School of Medicine, St. Louis, MO, USA
| | - Lisa Tabor Connor
- Program in Occupational Therapy, Washington University School of Medicine, St. Louis, MO, USA.,Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Carolyn M Baum
- Program in Occupational Therapy, Washington University School of Medicine, St. Louis, MO, USA.,Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA.,Brown School of Social Work, Washington University in St. Louis, St. Louis, MO, USA
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20
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Gomez-Andres A, Cunillera T, Rico I, Naval-Baudin P, Camins A, Fernandez-Coello A, Gabarrós A, Rodriguez-Fornells A. The role of the anterior insular cortex in self-monitoring: A novel study protocol with electrical stimulation mapping and functional magnetic resonance imaging. Cortex 2022; 157:231-244. [PMID: 36347086 DOI: 10.1016/j.cortex.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 07/18/2022] [Accepted: 09/05/2022] [Indexed: 12/15/2022]
Abstract
Becoming aware of one's own states is a fundamental aspect for self-monitoring, allowing us to adjust our beliefs of the world to the changing context. Previous evidence points out to the key role of the anterior insular cortex (aIC) in evaluating the consequences of our own actions, especially whenever an error has occurred. In the present study, we propose a new multimodal protocol combining electrical stimulation mapping (ESM) and functional magnetic resonance imaging (fMRI) to explore the functional role of the aIC for self-monitoring in patients undergoing awake brain surgery. Our results using a modified version of the Stroop task tackling metacognitive abilities revealed new direct evidence of the involvement of the aIC in monitoring our performance, showing increased difficulties in detecting action-outcome mismatches when stimulating a cortical site located at the most posterior part of the aIC as well as significant BOLD activations at this region during outcome incongruences for self-made actions. Based on these preliminary results, we highlight the importance of assessing the aIC's functioning during tumor resection involving this region to evaluate metacognitive awareness of the self in patients undergoing awake brain surgery. In a similar vein, a better understanding of the aIC's role during self-monitoring may help shed light on action/outcome processing abnormalities reported in several neuropsychiatric disorders such as schizophrenia, anosognosia for hemiplegia or major depression.
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Affiliation(s)
- Alba Gomez-Andres
- Cognition and Brain Plasticity Group [Bellvitge Biomedical Research Institute-IDIBELL], L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain
| | - Toni Cunillera
- Department of Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain; Institute of Neurosciences (UBNeuro), University of Barcelona, Barcelona, Spain
| | - Imma Rico
- Hospital Universitari de Bellvitge (HUB), Neurology Section, Campus Bellvitge, University of Barcelona - IDIBELL, L'Hospitalet de Llobregat (Barcelona), Spain
| | - Pablo Naval-Baudin
- Institut de Diagnòstic per la Imatge, Centre Bellvitge, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (Barcelona), Spain
| | - Angels Camins
- Institut de Diagnòstic per la Imatge, Centre Bellvitge, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (Barcelona), Spain
| | - Alejandro Fernandez-Coello
- Hospital Universitari de Bellvitge (HUB), Neurosurgery Section, Campus Bellvitge, University of Barcelona - IDIBELL, L'Hospitalet de Llobregat (Barcelona), Spain
| | - Andreu Gabarrós
- Hospital Universitari de Bellvitge (HUB), Neurosurgery Section, Campus Bellvitge, University of Barcelona - IDIBELL, L'Hospitalet de Llobregat (Barcelona), Spain
| | - Antoni Rodriguez-Fornells
- Cognition and Brain Plasticity Group [Bellvitge Biomedical Research Institute-IDIBELL], L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cognition, Development and Educational Psychology, University of Barcelona, Barcelona, Spain; Institute of Neurosciences (UBNeuro), University of Barcelona, Barcelona, Spain; Catalan Institution for Research and Advanced Studies, ICREA, Barcelona, Spain.
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21
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Gigi A, Papirovitz M. Why don't people with MCI approach memory clinics? The role of awareness in medical help-seeking. Front Neurol 2022; 13:897737. [PMID: 36090866 PMCID: PMC9449121 DOI: 10.3389/fneur.2022.897737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/26/2022] [Indexed: 11/13/2022] Open
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22
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Duran T, Woo E, Otero D, Risacher SL, Stage E, Sanjay AB, Nho K, West JD, Phillips ML, Goukasian N, Hwang KS, Apostolova LG. Associations between Cortical Thickness and Metamemory in Alzheimer's Disease. Brain Imaging Behav 2022; 16:1495-1503. [PMID: 35064438 PMCID: PMC9450553 DOI: 10.1007/s11682-021-00627-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2021] [Indexed: 12/27/2022]
Abstract
Metacognitive deficits affect Alzheimer's disease (AD) patient safety and increase caregiver burden. The brain areas that support metacognition are not well understood. 112 participants from the Imaging and Genetic Biomarkers for AD (ImaGene) study underwent comprehensive cognitive testing and brain magnetic resonance imaging. A performance-prediction paradigm was used to evaluate metacognitive abilities for California Verbal Learning Test-II learning (CVLT-II 1-5) and delayed recall (CVLT-II DR); Visual Reproduction-I immediate recall (VR-I Copy) and Visual Reproduction-II delayed recall (VR-II DR); Rey-Osterrieth Complex Figure Copy (Rey-O Copy) and delayed recall (Rey-O DR). Vertex-wise multivariable regression of cortical thickness was performed using metacognitive scores as predictors while controlling for age, sex, education, and intracranial volume. Subjects who overestimated CVLT-II DR in prediction showed cortical atrophy, most pronounced in the bilateral temporal and left greater than right (L > R) frontal cortices. Overestimation of CVLT-II 1-5 prediction and DR performance in postdiction showed L > R associations with medial, inferior and lateral temporal and left posterior cingulate cortical atrophy. Overconfident prediction of VR-I Copy performance was associated with right greater than left medial, inferior and lateral temporal, lateral parietal, anterior and posterior cingulate and lateral frontal cortical atrophy. Underestimation of Rey-O Copy performance in prediction was associated with atrophy localizing to the temporal and cingulate areas, and in postdiction, with diffuse cortical atrophy. Impaired metacognition was associated to cortical atrophy. Our results indicate that poor insight into one's cognitive abilities is a pervasive neurodegenerative feature associated with AD across the cognitive spectrum.
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Affiliation(s)
- Tugce Duran
- Department of Internal Medicine-Section of Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, 525 Vine Street, Suite 150, Winston-Salem, NC, 27101, USA.
| | - Ellen Woo
- Department of Psychology, California State University, Fresno, Fresno, CA, USA
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA
| | - Diana Otero
- Department of Neurology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Shannon L Risacher
- Department of Radiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Eddie Stage
- Department of Neurology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Apoorva B Sanjay
- Department of Neurology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kwangsik Nho
- Department of Radiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - John D West
- Department of Radiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Meredith L Phillips
- Department of Epidemiology and Biostatistics, Indiana University School of Public Health, Bloomington, IN, USA
| | - Naira Goukasian
- Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - Kristy S Hwang
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Liana G Apostolova
- Department of Neurology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Radiology, Indiana University School of Medicine, Indianapolis, IN, USA
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23
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Valotassiou V, Sifakis N, Tzavara C, Lykou E, Tsinia N, Kamtsadeli V, Sali D, Angelidis G, Psimadas D, Theodorou E, Tsougos I, Papageorgiou SG, Georgoulias P, Papatriantafyllou J. Anosognosia in Dementia: Evaluation of Perfusion Correlates Using 99mTc-HMPAO SPECT and Automated Brodmann Areas Analysis. Diagnostics (Basel) 2022; 12:diagnostics12051136. [PMID: 35626292 PMCID: PMC9140080 DOI: 10.3390/diagnostics12051136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/28/2022] [Accepted: 05/01/2022] [Indexed: 12/10/2022] Open
Abstract
(1) Background: Considerable inconsistency exists regarding the neural substrates of anosognosia in dementia in previous neuroimaging studies. The purpose of this study was the evaluation of anosognosia perfusion correlates across various types of dementia using automated Brodmann areas (BAs) analysis and comparison with a database of normal subjects. (2) Methods: We studied 72 patients: 32 with Alzheimer’s disease, 26 with frontotemporal dementia—FTD (12 behavioral FTD, 9 semantic FTD, 5 Progressive Non-Fluent Aphasia), 11 with corticobasal syndrome, and 3 with progressive supranuclear palsy. Addenbrook’s Cognitive Examination—Revised (ACE-R) mean(±SD) was 55.6(±22.8). For anosognosia measurement, the Anosognosia Questionnaire—Dementia was used. Total anosognosia score mean(±SD) was 22.1(±17.9), cognitive anosognosia score mean(±SD) was 18.1(±15.1) and behavioral–mood anosognosia score mean(±SD) was 3.3(±4.7). (3) Results: Higher anosognosia total score was associated with hypoperfusion in the inferior temporal, anterior cingulate, and inferior frontal cortices of the right hemisphere (BAs 20R, 24R, 32R, 45R). Higher anosognosia cognitive score was correlated with hypoperfusion in the left middle and anterior temporal cortices, and right dorsal anterior cingulate cortex (BAs 21L, 22L, 32R). No association was found with behavioral–mood anosognosia. (4) Conclusions: Automated analysis of brain perfusion Single Photon Emission Computed Tomography could be useful for the investigation of anosognosia neural correlates in dementia.
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Affiliation(s)
- Varvara Valotassiou
- Nuclear Medicine Department, University Hospital of Larissa, 41110 Larissa, Greece; (C.T.); (G.A.); (D.P.); (E.T.); (P.G.)
- Nuclear Medicine Department, Faculty of Medicine, University of Thessaly, Viopolis, 41500 Larissa, Greece
- Correspondence: or ; Tel.: +30-2413502916; Fax: +302413501851
| | - Nikolaos Sifakis
- Nuclear Medicine Department, “Alexandra” General Hospital, 11528 Athens, Greece;
| | - Chara Tzavara
- Nuclear Medicine Department, University Hospital of Larissa, 41110 Larissa, Greece; (C.T.); (G.A.); (D.P.); (E.T.); (P.G.)
| | - Evi Lykou
- 3rd Age Day Care Center, IASIS, 16562 Athens, Greece; (E.L.); (V.K.); (J.P.)
| | - Niki Tsinia
- 1st University Psychiatric Department, Aeginition Hospital, 11528 Athens, Greece;
| | - Vasiliki Kamtsadeli
- 3rd Age Day Care Center, IASIS, 16562 Athens, Greece; (E.L.); (V.K.); (J.P.)
| | - Dimitra Sali
- Neurology Department, Evrokliniki, 11521 Athens, Greece;
| | - George Angelidis
- Nuclear Medicine Department, University Hospital of Larissa, 41110 Larissa, Greece; (C.T.); (G.A.); (D.P.); (E.T.); (P.G.)
| | - Dimitrios Psimadas
- Nuclear Medicine Department, University Hospital of Larissa, 41110 Larissa, Greece; (C.T.); (G.A.); (D.P.); (E.T.); (P.G.)
| | - Eudoxia Theodorou
- Nuclear Medicine Department, University Hospital of Larissa, 41110 Larissa, Greece; (C.T.); (G.A.); (D.P.); (E.T.); (P.G.)
| | - Ioannis Tsougos
- Medical Physics Department, Faculty of Medicine, University of Thessaly, Viopolis, 41500 Larissa, Greece;
| | | | - Panagiotis Georgoulias
- Nuclear Medicine Department, University Hospital of Larissa, 41110 Larissa, Greece; (C.T.); (G.A.); (D.P.); (E.T.); (P.G.)
- Nuclear Medicine Department, Faculty of Medicine, University of Thessaly, Viopolis, 41500 Larissa, Greece
| | - John Papatriantafyllou
- 3rd Age Day Care Center, IASIS, 16562 Athens, Greece; (E.L.); (V.K.); (J.P.)
- Memory Disorders Clinic, Medical Center, 15125 Athens, Greece
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24
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Alexander CM, Martyr A, Clare L. Changes in awareness of condition in people with mild-to-moderate dementia: Longitudinal findings from the IDEAL cohort. Int J Geriatr Psychiatry 2022; 37:10.1002/gps.5702. [PMID: 35294792 PMCID: PMC9314100 DOI: 10.1002/gps.5702] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/01/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Awareness of difficulties shown by people with dementia is known to vary, but few studies have explored changes in awareness over time. Investigating this could further the understanding of surrounding concepts and reasons for impaired awareness. Recognising emerging or diminishing awareness could facilitate discussions about diagnosis and appropriate post-diagnostic support. METHODS Using longitudinal data from the Improving the experience of Dementia and Enhancing Active Life (IDEAL) cohort, awareness in community-dwelling people with mild-to-moderate dementia was assessed at three timepoints over 2 years. A validated checklist was used to evaluate awareness of difficulties associated with dementia. We examined changes in awareness for people with low awareness at baseline, and used case-matching to describe differences in characteristics between people who gained awareness, and those who continued with low awareness. RESULTS At baseline, 83 people from a sample of 917 showed low awareness. The majority of those remaining in the study at later timepoints had gained awareness, some as late as four or more years after diagnosis. Case-matched comparisons revealed few distinguishing characteristics: cases with stable low awareness had similar or better cognitive and functional ability than those who gained and retained awareness at 12 and 24 months, but may have had more co-morbidities. CONCLUSIONS Self-reported awareness of difficulties can change and may increase over time in people with mild-to-moderate dementia. There may be individual reasons for ongoing low awareness, not explained by cognitive or functional ability. This challenges the view that a single record of low awareness represents a fixed disease-related symptom, and highlights the complex, individual and dynamic nature of awareness.
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Affiliation(s)
- Catherine M. Alexander
- REACH: The Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, University of Exeter, South Cloisters, St Luke's CampusExeterUK
| | - Anthony Martyr
- REACH: The Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, University of Exeter, South Cloisters, St Luke's CampusExeterUK
| | - Linda Clare
- REACH: The Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, University of Exeter, South Cloisters, St Luke's CampusExeterUK
- National Institute for Health Research Applied Research Collaboration South‐West PeninsulaExeterUK
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25
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Chapman S, Joyce JL, Barker MS, Sunderaraman P, Rizer S, Huey ED, Dworkin J, Gu Y, Cosentino S. Subjective Cognitive Decline Is More Accurate When Metamemory Is Better. Front Aging Neurosci 2022; 14:787552. [PMID: 35370602 PMCID: PMC8965471 DOI: 10.3389/fnagi.2022.787552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/24/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Subjective cognitive decline (SCD) has emerged as one of the first manifestations of Alzheimer's disease (AD). However, discrepancies in its relationship with tests of memory and other cognitive abilities have hindered SCD's diagnostic utility. Inter-individual heterogeneity in metamemory, or memory awareness, and the use of clinical measures of cognition lacking sensitivity to early cognitive dysfunction, may contribute to these discrepancies. We aimed to assess if the relationship between SCD and markers of early cognitive dysfunction is moderated by metamemory abilities. Methods The sample included 79 cognitively healthy older adults (77% female, 68% White, and 32% Black participants) with a mean age of 74.4 (SD = 6.1) and 15.9 (SD = 2.7) years of education. Metamemory was assessed using an episodic Feeling of Knowing test with four 5-item trials. Outcome measures included a resolution metric defined as a gamma correlation reflecting the accuracy of item-level predictions ("Will you know the correct answer?"). Early cognitive dysfunction was measured through the Loewenstein-Acevedo Scale for Semantic Interference and Learning (LASSI-L) and the Short-Term Memory Binding Test (STMB), measures sensitive to preclinical AD. SCD was assessed with a 20-item questionnaire that asked participants to compare themselves to others their age on a 7-point Likert scale. Regression analyses examined whether a potential relation between SCD and early cognitive dysfunction was moderated by metamemory. Results Subjective cognitive decline was associated with susceptibility to semantic proactive interference such that greater complaints were associated with increased susceptibility to semantic proactive interference (b = -0.30, p = 0.003) only. Metamemory moderated the association between SCD and susceptibility to and recovery of semantic proactive interference such that those with more accurate metamemory showed a stronger association between increased complaints and susceptibility to semantic proactive interference (b = -0.71, p = 0.005; b = -0.62, p = 0.034). Metamemory, however, did not moderate the association of SCD with retroactive semantic interference nor short term memory binding. Discussion The accuracy of an individual's metamemory, specifically their ability to adjust moment to moment predictions in line with their performance, can influence the extent to which SCD maps onto objective cognition. Such self-referential assessment should be considered when interpreting SCD.
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Affiliation(s)
- Silvia Chapman
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, United States
| | - Jillian L. Joyce
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, United States
| | - Megan S. Barker
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, United States
| | - Preeti Sunderaraman
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, United States
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, United States
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
- Department of Neurology, Boston University School of Medicine, Boston, MA, United States
- Brain Aging Program, Framingham Heart Study, Framingham, MA, United States
| | - Sandra Rizer
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, United States
| | - Edward D. Huey
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, United States
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, United States
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States
| | - Jordan Dworkin
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States
| | - Yian Gu
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, United States
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
| | - Stephanie Cosentino
- Cognitive Neuroscience Division, Columbia University Irving Medical Center, New York, NY, United States
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, United States
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, United States
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
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26
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Wadams A, Suting L, Lindsey A, Mozeiko J. Metacognitive Treatment in Acquired Brain Injury and Its Applicability to Aphasia: A Systematic Review. FRONTIERS IN REHABILITATION SCIENCES 2022; 3:813416. [PMID: 36188940 PMCID: PMC9397955 DOI: 10.3389/fresc.2022.813416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/11/2022] [Indexed: 11/30/2022]
Abstract
Purpose The purpose of this systematic review is to identify the utility of metacognitive therapeutic intervention for persons with acquired brain injury (ABI), with a focus on persons with aphasia. Methods A search of six databases resulted in two hundred and sixty-six unique manuscripts relating to the explicit use of metacognitive treatment for people with ABI. Two independent reviewers rated abstracts for inclusion or exclusion of the study given predetermined criteria. Twenty-nine articles, five of which included people with aphasia, were selected for inclusion in this systematic review. SCED+ and PEDro+ rating scales were used to rate the methodological quality of each study. Results Methodological quality of the 29 studies that met inclusion criteria ranged from weak to high quality studies. Three -hundred and sixty-nine individuals with ABI took part in the 29 studies. Varying treatment methods were employed. Outcome measures were inconsistent. Metacognitive treatment has been applied to people with aphasia with positive results, but efficacy of the treatment cannot yet be determined. Conclusions Metacognitive therapeutic intervention tends to be effective for persons with acquired brain injury (ABI) despite variability between intervention designs and treatment outcomes across studies. Due to so few studies with participants with aphasia, we were unable to draw conclusions regarding the efficacy of metacognitive treatment for people with aphasia. Further research on the efficacy of metacognitive treatment for this population is warranted.
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Affiliation(s)
- Amanda Wadams
- Department of Speech, Language and Hearing Science, University of Connecticut, Mansfield, MA, United States
- *Correspondence: Amanda Wadams
| | - Louisa Suting
- Department of Speech, Language and Hearing Science, University of Connecticut, Mansfield, MA, United States
| | - André Lindsey
- School of Education, Speech Pathology, Nevada State College, Henderson, NV, United States
| | - Jennifer Mozeiko
- Department of Speech, Language and Hearing Science, University of Connecticut, Mansfield, MA, United States
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27
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Kenepp A, Johnson E, Lee GJ, Sunderaraman P, Denburg NL, Nguyen CM. A Comprehensive Approach to Assessment of Testamentary Capacity. Front Psychol 2021; 12:789494. [PMID: 35002883 PMCID: PMC8733255 DOI: 10.3389/fpsyg.2021.789494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/01/2021] [Indexed: 11/26/2022] Open
Abstract
The growing aging population raises important implications for legal and clinical systems, including testamentary capacity (TC) assessment. Yet, there are limited comprehensive and standardized assessment measures for TC readily available for clinical use. A review of current assessment methods and standardized approaches for TC assessment is provided. Although several guidelines regarding TC assessment have been proposed in prior literature, existing standardized approaches do not appear to meet full criteria for TC. A comprehensive approach to assessment of testamentary capacity is proposed.
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Affiliation(s)
- Amanda Kenepp
- Department of Psychology, Queens College and The Graduate Center (CUNY), New York, NY, United States
- Department of Psychiatry and Behavioral Health, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Ellen Johnson
- Department of Psychiatry and Behavioral Health, The Ohio State University College of Medicine, Columbus, OH, United States
- Department of Psychology, Ohio University, Athens, OH, United States
| | - Grace J. Lee
- Department of Psychiatry and Behavioral Health, The Ohio State University College of Medicine, Columbus, OH, United States
- Department of Psychology, Ohio University, Athens, OH, United States
| | - Preeti Sunderaraman
- Department of Neurology & The Framingham Heart Study - Brain Aging Program, Boston University School of Medicine, Boston, MA, United States
| | - Natalie L. Denburg
- Department of Neurology, University of Iowa Carver College of Medicine, Iowa, IA, United States
| | - Christopher M. Nguyen
- Department of Psychiatry and Behavioral Health, The Ohio State University College of Medicine, Columbus, OH, United States
- *Correspondence: Christopher M. Nguyen,
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Arora C, Frantz C, Toglia J. Awareness of Performance on a Functional Cognitive Performance-Based Assessment Across the Adult Lifespan. Front Psychol 2021; 12:753016. [PMID: 34803834 PMCID: PMC8602564 DOI: 10.3389/fpsyg.2021.753016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/19/2021] [Indexed: 11/15/2022] Open
Abstract
As people age, their cognitive skills and ability to complete complex instrumental activities of daily living often decline in subtle ways. Older adults who are aware of these slight cognitive and functional changes spontaneously adapt and implement strategies to maximize performance. On the other hand, older adults with limited self-awareness are less likely to adjust performance or initiate compensatory strategies as they may not recognize the need to do so. This places them at higher risk of functional decline and loss of independence. Research on awareness of functional performance in healthy adults is, however, limited, and there is a paucity of assessment tools available to address questions of awareness and strategy use in functional tasks. We used the Weekly Calendar Planning Activity (WCPA) - a performance-based assessment of functional cognition including measures of awareness and strategy use - to investigate differences in performance, awareness, and strategy use across the adult lifespan. The WCPA requires examinees to schedule appointments into a weekly calendar while following rules designed to increase task demands. Healthy adults (n=342) from ages 18-92 were observed for strategy use and error recognition, while a post-test interview probed participants' reported strategy use and estimation of accuracy. The discrepancy between participant estimation and actual accuracy provided a measure of online awareness of performance where a larger estimation discrepancy indicated over-estimation of performance. Performance on the WCPA declined across the adult lifespan. Older adults were less likely to use self-monitoring strategies and used less effective strategies overall. Overestimation was associated with use of fewer strategies and lower accuracy in all age groups. Importantly, twice as many older adults overestimated compared to younger adults. Furthermore, the subset of older adults who had good awareness of performance was more likely to use effective strategies, to recognize errors, and achieved accuracy on par with their younger counterparts. Our results emphasize the importance of examining self-awareness of performance and analyzing the strategies used to perform a complex functional task. This information can provide a foundation for early detection of functional decline in aging and for designing interventions to maximize functional independence in aging.
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Affiliation(s)
- Catherine Arora
- Department of Occupational Therapy, School of Health and Natural Sciences, Mercy College, Dobbs Ferry, NY, United States
| | - Carina Frantz
- Department of Occupational Therapy, School of Health and Natural Sciences, Mercy College, Dobbs Ferry, NY, United States
| | - Joan Toglia
- School of Health and Natural Sciences, Mercy College, Dobbs Ferry, NY, United States
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Pennington C, Ball H, Swirski M, Newson M, Coulthard E. Metacognitive Performance on Memory and Visuospatial Tasks in Functional Cognitive Disorder. Brain Sci 2021; 11:1368. [PMID: 34679432 PMCID: PMC8533868 DOI: 10.3390/brainsci11101368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/10/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
Functional Cognitive Disorder (FCD) is a common diagnosis at the memory clinic. FCD is characterised by significant self-reported cognitive symptoms in the absence of external evidence of cognitive dysfunction. A potential explanation for this is a deficit in metacognition, the process by which we internally judge our own abilities. Here we investigated differences in accuracy, confidence, and metacognition between people with FCD (N = 20), neurodegenerative mild cognitive impairment (nMCI; N = 14), and healthy controls (N = 23). The groups were assessed on forced choice memory and perceptual tasks, with trial by trial confidence ratings. FCD and nMCI participants showed lower accuracy on the memory task (means FCD 63.65%, nMCI 63.96%, HC 71.22%), with a significant difference between the FCD and HC groups after controlling for age and sex. There were no between-group differences in memory task confidence (means FCD 3.19, nMCI 3.59, HC 3.71). The FCD group showed greater confidence when longer time was allowed on the memory task. No between group differences in perceptual task accuracy (means FCD 63.97%, nMCI 64.50%, FCD 65.86%) or confidence (means FCD 3.71, nMCI 3.43, HC 3.88) were found. No differences in metacognitive efficacy emerged between the groups, either on the memory or perceptual task (Memory Meta-d'/d':FCD 0.63, nMCI 0.94 HC 0.85; Perceptual Meta-d',d': FCD 0.50, nMCI 0.51, HC 0.72). Participants showed greater metacognitive efficacy on the memory task compared to the perceptual task. The difficulties experienced by people with FCD do not appear to be due to metacognitive deficits. Their performance was similar to people with nMCI over aspects of the memory tasks, which suggests that the primary issue may lie with memory encoding or retrieval, rather than with their judgement of performance accuracy.
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Affiliation(s)
- Catherine Pennington
- Edinburgh Dementia Prevention, Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Harriet Ball
- ReMemBr Group, Bristol Medical School, University of Bristol, Bristol BS10 5NB, UK; (H.B.); (M.S.); (M.N.); (E.C.)
| | - Marta Swirski
- ReMemBr Group, Bristol Medical School, University of Bristol, Bristol BS10 5NB, UK; (H.B.); (M.S.); (M.N.); (E.C.)
| | - Margaret Newson
- ReMemBr Group, Bristol Medical School, University of Bristol, Bristol BS10 5NB, UK; (H.B.); (M.S.); (M.N.); (E.C.)
| | - Elizabeth Coulthard
- ReMemBr Group, Bristol Medical School, University of Bristol, Bristol BS10 5NB, UK; (H.B.); (M.S.); (M.N.); (E.C.)
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Alexander CM, Martyr A, Gamble LD, Savage SA, Quinn C, Morris RG, Collins R, Clare L. Does awareness of condition help people with mild-to-moderate dementia to live well? Findings from the IDEAL programme. BMC Geriatr 2021; 21:511. [PMID: 34563135 PMCID: PMC8467163 DOI: 10.1186/s12877-021-02468-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/06/2021] [Indexed: 01/07/2023] Open
Abstract
Background People living with dementia vary in awareness of their abilities. We explored awareness of the condition and diagnosis in people with mild-to-moderate dementia, and how this relates to quality of life, well-being, life satisfaction, and caregiver stress. Methods This study was a cross-sectional exploratory analysis of data from the IDEAL cohort, which recruited people with dementia living at home and available caregivers from 29 research sites in Great Britain. Our study included 917 people with mild-to-moderate dementia and 755 carers. Low and high awareness groups were derived from self-reported responses to a dementia representation measure. Logistic regression was used to explore predictors of awareness of condition and diagnosis using demographic, cognitive, functional and psychological measures, and the relationship with quality of life, well-being and life satisfaction (‘living well’), and caregiver stress. Results There were 83 people with low awareness of their condition. The remaining 834 people showed some awareness and 103 of these had high awareness of their condition and diagnosis. Psychosocial factors were stronger predictors of awareness than cognitive and functional ability. Those with higher awareness reported lower mood, and lower scores on indices of living well as well as lower optimism, self-efficacy and self-esteem. Low awareness was more likely in those aged 80y and above, and living in more socially deprived areas. No relationship was seen between caregiver stress and awareness. Conclusions Awareness of the condition and diagnosis varies in people with mild-to-moderate dementia and is relevant to the capability to live well. Awareness should be considered in person-centered clinical care. Supplementary Information The online version contains supplementary material available at 10.1186/s12877-021-02468-4.
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Affiliation(s)
- Catherine M Alexander
- REACH: The Centre for Research in Ageing and Cognitive Health, College of Medicine and Health, University of Exeter Medical School, University of Exeter, South Cloisters, St Luke's Campus, Exeter, EX1 2LU, UK.
| | - Anthony Martyr
- REACH: The Centre for Research in Ageing and Cognitive Health, College of Medicine and Health, University of Exeter Medical School, University of Exeter, South Cloisters, St Luke's Campus, Exeter, EX1 2LU, UK
| | - Laura D Gamble
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Sharon A Savage
- School of Psychology, The University of Newcastle, Australia, Newcastle, Australia
| | - Catherine Quinn
- Centre for Applied Dementia Studies, University of Bradford, Bradford, UK
| | - Robin G Morris
- Department of Psychology, King's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Rachel Collins
- REACH: The Centre for Research in Ageing and Cognitive Health, College of Medicine and Health, University of Exeter Medical School, University of Exeter, South Cloisters, St Luke's Campus, Exeter, EX1 2LU, UK
| | - Linda Clare
- REACH: The Centre for Research in Ageing and Cognitive Health, College of Medicine and Health, University of Exeter Medical School, University of Exeter, South Cloisters, St Luke's Campus, Exeter, EX1 2LU, UK.,National Institute for Health Research Applied Research Collaboration South-West Peninsula, Exeter, UK
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31
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Fu Y, Luo X, Zeng Q, Li K, Zhang T, Li Z, Xu X, Hong L, Chen Y, Zhang M, Liu Z. Effects of Anosognosia on Static and Dynamic Amplitudes of Low-Frequency Fluctuation in Mild Cognitive Impairment. Front Aging Neurosci 2021; 13:705097. [PMID: 35221980 PMCID: PMC8867082 DOI: 10.3389/fnagi.2021.705097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/20/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Anosognosia is a significant symptom in patients with mild cognitive impairment (MCI) while the underlying neurological mechanism behind it is still unclear. Methods: A total of 121 subjects were included and classified into three groups, including 39 normal controls (NCs), 42 individuals with MCI without anosognosia (MCI-NA), and 40 individuals with MCI with anosognosia (MCI-A), based on their everyday cognition (ECog) questionnaire (discrepancy score). Resting-state functional MRIs were acquired from all the subjects, and the static amplitudes of low-frequency fluctuation (sALFF) and dynamic ALFF (dALFF) variance were investigated to evaluate the intrinsic functional network strength and stability, respectively, and both were corrected by age, sex, education, and gray matter volume. Eventually, correlation analyses were conducted to explore the relationship between brain activity changes and cognitive status in all the subjects. Results: No significant difference was found between MCI-A and MCI-NA (P > 0.05) in cognitive ability. Regarding intrinsic brain activity, MCI-A had increased sALFF and dALFF variance in the anterior cingulate cortex (ACC) relative to MCI-NA, as well as decreased sALFF and dALFF variance in the precuneus relative to MCI-NA and controls. Moreover, MCI-A had decreased sALFF in the inferior temporal gyrus (ITG) and paracentral lobule (PCL) compared to MCI-NA. Among all the subjects, correlation analyses showed that the sALFF and dALFF variance in the precuneus was related to the Ecog discrepancy score (r = 0.232 and 0.235, respectively), immediate story recall (r = 0.200 and 0.277, respectively), and delayed story recall (r = 0.255 and 0.298, respectively). Conclusion: Alterations of intrinsic brain activation in the ACC and precuneus seem to be associated with the anosognosia symptom in patients with MCI.
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Affiliation(s)
- Yanv Fu
- Department of Neurology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao Luo
- Department of Radiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Qingze Zeng
- Department of Radiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Kaicheng Li
- Department of Radiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Tianyi Zhang
- Department of Neurology, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Zheyu Li
- Department of Neurology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaopei Xu
- Department of Radiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Luwei Hong
- Department of Radiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yanxing Chen
- Department of Neurology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Minming Zhang
- Department of Radiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zhirong Liu
- Department of Neurology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
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32
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Alexander CM, Martyr A, Savage SA, Morris RG, Clare L. Measuring Awareness in People With Dementia: Results of a Systematic Scoping Review. J Geriatr Psychiatry Neurol 2021; 34:335-348. [PMID: 32400259 PMCID: PMC8326902 DOI: 10.1177/0891988720924717] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Awareness of the diagnosis or related changes in functioning varies in people with dementia (PwD), with implications for the well-being of PwD and their carers. Measuring awareness in a clinical setting could facilitate tailored support and optimize involvement in personal health and care decisions. This scoping review aimed to identify validated methods of assessing awareness in dementia and appraise their clinical utility. METHOD A systematic search was conducted of English-language publications that measured awareness in PwD, in 6 electronic databases. Search terms included dement*, Alzheimer*, Pick disease, and awareness, unawareness, anosognosia, insight, denial, metacognit*, or discrepanc*. RESULTS We screened 30,634 articles, finding 345 articles that met our inclusion criteria. We identified 76 measures, most commonly using a discrepancy questionnaire comparing evaluations of function by PwD and an informant. There were 30 awareness measures developed and validated for use in dementia populations but few designed for general clinical use. CONCLUSIONS Although we found a range of clinical indications for measuring awareness, there were few studies investigating clinical applications and few tools designed for clinical purposes. Further investigation and development of a person-centered tool could facilitate health and care choices in mild-to-moderate dementia.
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Affiliation(s)
- Catherine M. Alexander
- University of Exeter Medical School, South Cloisters, St Luke’s Campus, Exeter, United Kingdom,Catherine M. Alexander, University of Exeter Medical School, South Cloisters, St Luke’s Campus, Exeter EX1 2LU, United Kingdom.
| | - Anthony Martyr
- University of Exeter Medical School, South Cloisters, St Luke’s Campus, Exeter, United Kingdom
| | - Sharon A. Savage
- Psychology Department, University of Exeter, Washington Singer Laboratories, Streatham Campus, Exeter, United Kingdom
| | - Robin G. Morris
- King's College Institute of Psychiatry, Psychology and Neuroscience, London, United Kingdom
| | - Linda Clare
- University of Exeter Medical School, South Cloisters, St Luke’s Campus, Exeter, United Kingdom
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33
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Torres IJ, Hidiroglu C, Mackala SA, Ahn S, Yatham LN, Ozerdem E, Michalak EE. Metacognitive knowledge and experience across multiple cognitive domains in euthymic bipolar disorder. Eur Psychiatry 2021; 64:e36. [PMID: 34082855 PMCID: PMC8204590 DOI: 10.1192/j.eurpsy.2021.31] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Metacognitive knowledge (MK; general awareness of cognitive functioning) and metacognitive experience (ME; awareness of cognitive performance on a specific cognitive task) represent two facets of metacognition that are critical for daily functioning, but are understudied in bipolar disorder. This study was conducted to evaluate MK and ME across multiple cognitive domains in individuals diagnosed with bipolar disorder and unaffected volunteers, and to investigate the association between metacognition and quality of life (QoL). Methods Fifty-seven euthymic participants with bipolar disorder and 55 demographically similar unaffected volunteers provided prediction and postdiction ratings of cognitive task performance across multiple cognitive domains. Self-ratings were compared to objective task performance, and indices of MK and ME accuracy were generated and compared between groups. Participants rated QoL on the Quality of Life in Bipolar Disorder Scale (QoL.BD). Results Metacognitive inaccuracies in both MK and ME were observed in participants with bipolar disorder, but only in select cognitive domains. Furthermore, most metacognitive inaccuracies involved underestimation of cognitive ability. Metacognitive indices were minimally associated with medication variables and mood symptoms, but several indices were related to QoL. Conclusions Individuals with bipolar disorder demonstrate inaccuracies in rating their cognitive functioning and in rating their online cognitive task performance, but only on select cognitive functions. The tendency to underestimate performance may reflect a negative information processing bias characteristic of mood disorders. Metacognitive variables were also predictive of QoL, indicating that further understanding of cognitive self-appraisals in persons with bipolar disorder has significant clinical relevance.
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Affiliation(s)
- Ivan J Torres
- Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada.,British Columbia Mental Health and Substance Use Services, Vancouver, British Columbia, Canada
| | - Ceren Hidiroglu
- Department of Psychology, Dokuz Eylul University, Izmir, Turkey
| | - Sylvia A Mackala
- Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sharon Ahn
- Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lakshmi N Yatham
- Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Eysegul Ozerdem
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, Minnesota, USA
| | - Erin E Michalak
- Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada
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Papirovitz M, Gigi A. New Contemplation Upon Subjective Memory Complaints as a Self- Report Criterion for MCI Diagnosis. Curr Alzheimer Res 2021; 18:136-141. [PMID: 33882803 DOI: 10.2174/1567205018666210416095437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 02/21/2021] [Accepted: 04/05/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Subjective memory complaints are a key component in mild cognitive impairment (MCI) diagnosis. However, studies that examined memory awareness among MCI participants have published contradictory results. One possible explanation for the inconsistent findings could be the disregard from the multidimensional structure of subjective memory. OBJECTIVES The present study is directed at assessing subjective memory among healthy and MCI participants, referring to three main types of memory: episodic, semantic, and working memory. METHODS Participants were 123 adults (aged 50-90). They were divided into two groups, the MCI group, and the control group, according to their objective cognitive performance in RAVL or Mo- CA tests. All participants filled a subjective memory questionnaire, assessing their awareness of episodic, semantic, and working memory. RESULTS MCI participants estimated their semantic memory as significantly lower in comparison to the estimation of the healthy controls. By contrast, MCI participants showed an overestimation of their episodic memory capabilities compared to the control group. No significant difference was found between groups (MCI and healthy controls) in evaluating their working memory. In addition, for both groups, Pearson's correlation revealed a significant negative correlation between age and semantic memory evaluation. Such correlation was not found for subjective episodic memory. DISCUSSION Findings suggest that while people with MCI exhibit poor awareness of their episodic and working memory capabilities, their awareness of their decrease in semantic memory is apparently intact. Therefore, it is suggested that when using the self-report criterion for MCI diagnosis, clinicians should consider the patient's' semantic memory complaints.
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Affiliation(s)
- Merav Papirovitz
- Department of Psychology and Behavioral Sciences, Ariel University, Ariel 44837, Israel
| | - Ariela Gigi
- Department of Psychology and Behavioral Sciences, Ariel University, Ariel 44837, Israel
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35
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Ávila-Villanueva M, Gómez-Ramírez J, Ávila J, Fernández-Blázquez MA. Alzheimer's Disease and Empathic Abilities: The Proposed Role of the Cingulate Cortex. J Alzheimers Dis Rep 2021; 5:345-352. [PMID: 34189406 PMCID: PMC8203285 DOI: 10.3233/adr-200282] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
In recent years there has been increasing interest in examining the role of empathic abilities in Alzheimer’s disease (AD). Empathy, the ability to understand and share another person’s feelings, implies the existence of emotional and cognitive processes and is a pivotal aspect for success in social interactions. In turn, self-empathy is oriented to one’s thoughts and feelings. Decline of empathy and self-empathy can occur during the AD continuum and can be linked to different neuroanatomical pathways in which the cingulate cortex may play a crucial role. Here, we will summarize the involvement of empathic abilities through the AD continuum and further discuss the potential neurocognitive mechanisms that contribute to decline of empathy and self-empathy in AD.
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Affiliation(s)
- Marina Ávila-Villanueva
- Alzheimer Disease Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofía Foundation Alzheimer Center, Madrid, Spain
| | - Jaime Gómez-Ramírez
- Alzheimer Disease Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofía Foundation Alzheimer Center, Madrid, Spain
| | - Jesús Ávila
- Center of Molecular Biology Severo Ochoa (CSIC-UAM), Campus de Cantoblanco, Madrid, Spain.,Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Miguel A Fernández-Blázquez
- Alzheimer Disease Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofía Foundation Alzheimer Center, Madrid, Spain.,Department of Experimental Psychology, Cognitive Processes and Speech Therapy, Complutense University of Madrid (UCM), Campus de Somosaguas, Pozuelo de Alarcón, Madrid, Spain
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36
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O'Shaughnessy NJ, Chan JE, Bhome R, Gallagher P, Zhang H, Clare L, Sampson EL, Stone P, Huntley J. Awareness in severe Alzheimer's disease: a systematic review. Aging Ment Health 2021; 25:602-612. [PMID: 31942805 DOI: 10.1080/13607863.2020.1711859] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 12/13/2019] [Accepted: 12/31/2019] [Indexed: 12/26/2022]
Abstract
Objective: There is limited understanding about how people in the severe stages of Alzheimer's disease (AD) experience and demonstrate awareness. We synthesised all available evidence with the aim of understanding how awareness is preserved or impaired in severe AD and what evidence there is for different levels of awareness according to the levels of awareness framework.Method: A systematic search of the following databases: Embase, PsycINFO, MEDLINE and Web of Science was carried out. A narrative synthesis and analysis was conducted of all included studies. All studies were assessed for quality using the AXIS and CASP tools.Results: Our findings suggest that lower level sensory awareness is relatively maintained in severe AD. Findings for higher level awareness are variable and this may be related to the diversity of methods that have been used to explore awareness in these circumstances.Conclusion: Awareness is complex, heterogeneous and varies significantly between individuals. Environmental and contextual factors have a significant impact on whether awareness is observed in people with severe AD. Adaptation of the environment has the potential to facilitate the expression of awareness while education of caregivers may increase understanding of people with severe AD and potentially improve the quality of care that is received.
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Affiliation(s)
| | - J E Chan
- Division of Psychiatry, University College London, London, UK
| | - R Bhome
- Division of Psychiatry, University College London, London, UK
| | - P Gallagher
- Division of Psychiatry, University College London, London, UK
| | - H Zhang
- Division of Psychiatry, University College London, London, UK
- National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Peking University Institute of Mental Health (Sixth Hospital), Beijing, China
- Dementia Care and Research Center, Peking University Institute of Mental Health (Sixth Hospital), Beijing, China
| | - L Clare
- Centre for Research for Ageing and Cognitive Health, University of Exeter, Exeter, UK
| | - E L Sampson
- Division of Psychiatry, University College London, London, UK
| | - P Stone
- Division of Psychiatry, University College London, London, UK
| | - J Huntley
- Division of Psychiatry, University College London, London, UK
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37
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Bastin C, Giacomelli F, Miévis F, Lemaire C, Guillaume B, Salmon E. Anosognosia in Mild Cognitive Impairment: Lack of Awareness of Memory Difficulties Characterizes Prodromal Alzheimer's Disease. Front Psychiatry 2021; 12:631518. [PMID: 33868048 PMCID: PMC8044313 DOI: 10.3389/fpsyt.2021.631518] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/08/2021] [Indexed: 12/29/2022] Open
Abstract
While anosognosia is often present in Alzheimer's disease, the degree of awareness of cognitive difficulties in the earlier stages, such as Mild Cognitive Impairment (MCI), is less clear. Using a questionnaire and Feeling-of-Knowing tasks, the aims of this study were (1) to test the hypothesis that anosognosia is present specifically in prodromal AD stage in patients that, owing to a more severe AD neuropathology, will rapidly progress to overt dementia and (2) to assess the neural bases of self-awareness for memory functioning. A group of 44 patients with amnestic MCI and a group of 29 healthy older participants (CTRL) performed two Feeling-of-Knowing tasks (episodic and semantic FOK) and responded to the Functional Memory Scale (MARS), also completed by one of their relatives. They underwent FDG-PET and structural MRI. The participants were followed clinically for 4 years. At the end of follow-up, 23 patients with MCI developed Alzheimer's disease (converters) and 21 patients still presented symptoms of MCI without progression (non-converters). The analyses focused on the data from inclusion stratified according to clinical status 4 years later (converters, non-converters, CTRL). On the episodic FOK task, converters patients overestimated their ability to later recognize unrecalled words and they showed prediction accuracy (Hamann coefficient) at the level of chance. No difficulty was observed in any group with the semantic FOK task. On the MARS, converters patients had a higher anosognosia score than non-converters patients and CTRL, which did not differ from each other. Correlations between self-awareness scores and neuroimaging data using small volume correction analyses in a priori regions of interest in converters indicated that inaccurate episodic FOK judgments was related to changes in brain areas that might support interpretation of retrieved content for judging the likelihood of recognition. For the MARS, the association between anosognosia and decreased gray matter density of the left inferior prefrontal cortex in converters might indicate poor inhibition over outdated personal knowledge. In amnestic MCI, anosognosia could be an early sign of neurodegeneration in brain areas that would support control mechanisms over memory representations.
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Affiliation(s)
- Christine Bastin
- GIGA-Cyclotron Research Center-in vivo Imaging, University of Liège, Liège, Belgium.,F.R.S.-Fonds National de la Recherche Scientifique, Bruxelles, Belgium
| | - Fabrice Giacomelli
- GIGA-Cyclotron Research Center-in vivo Imaging, University of Liège, Liège, Belgium
| | - Frédéric Miévis
- GIGA-Cyclotron Research Center-in vivo Imaging, University of Liège, Liège, Belgium
| | - Christian Lemaire
- GIGA-Cyclotron Research Center-in vivo Imaging, University of Liège, Liège, Belgium
| | | | - Eric Salmon
- GIGA-Cyclotron Research Center-in vivo Imaging, University of Liège, Liège, Belgium.,Memory Clinic, CHU Liège, Liège, Belgium
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38
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Pennington C, Duncan G, Ritchie C. Altered awareness of cognitive and neuropsychiatric symptoms in Parkinson's disease and Dementia with Lewy Bodies: A systematic review. Int J Geriatr Psychiatry 2021; 36:15-30. [PMID: 32869379 DOI: 10.1002/gps.5415] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 08/09/2020] [Accepted: 08/14/2020] [Indexed: 01/29/2023]
Abstract
OBJECTIVES Altered awareness of cognitive and neuropsychiatric symptoms is a common feature of neurodegeneration, which can significantly impact on quality of life, medication concordance and personal safety. Elucidating how awareness is affected by common alpha-synucleinopathies therefore has significant clinical relevance. We performed a systematic review of the literature on awareness of cognitive and neuropsychiatric symptoms in Parkinson's disease and Dementia with Lewy Bodies. METHODS Searches of PubMed and Web of Science were carried out, using keywords and MeSH subheadings, limited to papers in English dealing with humans. The terms "Parkinson's" or "Lewy body" were used to denote the disease of interest, combined with either "agnosia", "anosognosia", "insight", "metacognition", or "neuropsychology" to denote the neuropsychological area of interest. RESULTS 21 publications investigating awareness of cognitive symptoms, and 18 publications on awareness of neuropsychiatric symptoms were identified. The large majority focused on Parkinson's disease rather than Dementia with Lewy Bodies. Cognitively intact people with Parkinson's disease may over-report cognitive symptoms, whilst those with cognitive impairment under-report symptoms. Awareness of neuropsychiatric symptoms is likely to decline over time, particularly in those with progressive cognitive impairment. CONCLUSIONS Altered awareness of cognitive and neuropsychiatric symptoms is common in Parkinson's disease. Symptom awareness varies significantly between individuals, and appears to be influenced by mood and global cognitive functioning, with executive functioning specifically implicated. There are gaps in our understanding of how dopaminergic medications influence symptom awareness, and a need for longitudinal studies of how awareness changes over time in Parkinson's disease and Dementia with Lewy Bodies.
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Affiliation(s)
- Catherine Pennington
- Edinburgh Dementia Prevention, University of Edinburgh, Edinburgh, UK.,Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Gordon Duncan
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Craig Ritchie
- Edinburgh Dementia Prevention, University of Edinburgh, Edinburgh, UK.,Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
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Vannini P, Hanseeuw BJ, Gatchel JR, Sikkes SAM, Alzate D, Zuluaga Y, Moreno S, Mendez L, Baena A, Ospina-Lopera P, Tirado V, Henao E, Acosta-Baena N, Giraldo M, Lopera F, Quiroz YT. Trajectory of Unawareness of Memory Decline in Individuals With Autosomal Dominant Alzheimer Disease. JAMA Netw Open 2020; 3:e2027472. [PMID: 33263761 PMCID: PMC7711319 DOI: 10.1001/jamanetworkopen.2020.27472] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
IMPORTANCE Recent studies have suggested that unawareness, or anosognosia, of memory decline is present in predementia stages of Alzheimer disease (AD) and may serve as an early symptomatic indicator of AD. OBJECTIVE To investigate the evolution of anosognosia of memory decline in individuals who carry the PSEN1 E280A variant for autosomal dominant AD compared with family members who do not carry the variant. DESIGN, SETTING, AND PARTICIPANTS This cohort study investigated a total of 2379 members of a Colombian kindred with autosomal dominant AD who were part of the Alzheimer's Prevention Initiative Registry. Assessments were completed at the University of Antioquia, Colombia, with data collected between January 1, 2000, and July 31, 2019. MAIN OUTCOMES AND MEASURES Awareness of memory function was operationalized using the discrepancy between self-report and study partner report on a memory complaint scale. Linear mixed effects models were used to assess memory self-awareness over age separately in variant carriers and noncarriers. RESULTS This study included 396 variant carriers (mean [SD] age, 32.7 [11.9] years; 200 [50.5%] female), of whom 59 (14.9%) were cognitively impaired, and 1983 cognitively unimpaired noncarriers (mean [SD] age, 33.5 [12.5] years; 1129 [56.9%] female). The variant carriers demonstrated increased awareness until the mean (SD) age of 35.0 (2.0) years and had anosognosia at approximately 43 years of age, approximately 6 years before their estimated median age of dementia onset (49 years; 95% CI, 49-51 years). Cognitively unimpaired noncarriers reported more complaints than their study partners aged 20 and 60 years (10.1 points, P < .001). On the awareness index, a decrease with age (mean [SE] estimate, -0.04 [0.02] discrepant-points per years; t = -2.2; P = .03) in the noncarriers and in the variant carriers (mean [SE] estimate, -0.21 [0.04] discrepant-points per years; t = -5.1; P < .001) was observed. CONCLUSIONS AND RELEVANCE In this cohort study, increased participant complaints were observed in both groups, suggesting that increased awareness of memory function was common and nonspecific to AD in this cohort. In variant carriers, awareness of memory function decreased in the predementia stages, reaching anosognosia close to the age of mild cognitive impairment onset, providing support for the usefulness of awareness of memory decline.
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Affiliation(s)
- Patrizia Vannini
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts
- Department of Neurology, Massachusetts General Hospital, Boston
- Department of Neurology, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Department of Radiology, Harvard Medical School, Boston, Massachusetts
| | - Bernard J. Hanseeuw
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Department of Radiology, Harvard Medical School, Boston, Massachusetts
- Neurology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
- Institute of Neuroscience, Université Catholique de Louvain, Brussels, Belgium
| | - Jennifer R. Gatchel
- Harvard Medical School, Boston, Massachusetts
- Department of Psychiatry, Massachusetts General Hospital, Boston
- Department of Psychiatry, McLean Hospital, Belmont, Massachusetts
| | - Sietske A. M. Sikkes
- Amsterdam University Medical Centers, Alzheimer Center Amsterdam, Amsterdam, the Netherlands
| | - Diana Alzate
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Yesica Zuluaga
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Sonia Moreno
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Luis Mendez
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Ana Baena
- Department of Psychiatry, Massachusetts General Hospital, Boston
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Paula Ospina-Lopera
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Victoria Tirado
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Eliana Henao
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
- Department of Radiology, Hospital Pablo Tobón, Uribe, Medellin, Colombia
| | - Natalia Acosta-Baena
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Margarita Giraldo
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Francisco Lopera
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
| | - Yakeel T. Quiroz
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts
- Department of Neurology, Massachusetts General Hospital, Boston
- Harvard Medical School, Boston, Massachusetts
- Department of Psychiatry, Massachusetts General Hospital, Boston
- Grupo de Neurociencias de Antioquia, School of Medicine, Universidad de Antioquia, Medellin, Colombia
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Merchán-Baeza JA, Rodriguez-Bailon M, Ricchetti G, Navarro-Egido A, Funes MJ. Awareness of cognitive abilities in the execution of activities of daily living after acquired brain injury: an evaluation protocol. BMJ Open 2020; 10:e037542. [PMID: 33109646 PMCID: PMC7592290 DOI: 10.1136/bmjopen-2020-037542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION One of the main limitations that can be observed after acquired brain injury (ABI) is the alteration of the awareness of the deficits that can occur in the cognitive skills necessary for performing activities of daily living (ADL). According to the Dynamic Comprehensive Model of Awareness (DCMA), consciousness is composed of offline component, which contains the information stored about characteristics of the tasks and stable beliefs about one's own capabilities and online awareness, which is activated in the context of the performance of a specific task. The main objective of this project was to generate and validate a detailed cognitive assessment protocol within the context of ADL to evaluate the components of DCMA. METHODS AND ANALYSIS The proposed protocol consists of two ecological tools: The Cog-Awareness ADL Scale to measure offline component and the Awareness ADL-task: Basic and Instrumental ADL performance-based test to measure online awareness. The aim is to identify the presence of cognitive deficits and anosognosia in patients with ABI within the context of everyday life activities. These two measures will be administered to a group of patients with ABI. In addition, these participants will complete another series of classic tests on anosognosia and cognitive functions in order to find the convergent validity of the two tests proposed in this protocol. The external validity of the Cog-Awareness ADL Scale and the relationships between awareness components within the same ADL domain will be also analysed. ETHICS AND DISSEMINATION This study was approved by the Ethics Committee of Biomedical Research of Andalusia, on 13 January /2017 (Proceeding 1/2017). All participants are required to provide written informed consent. The findings from this will be disseminated via scientific publication. TRIAL REGISTRATION NUMBER NCT03712839.
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Affiliation(s)
- Jose Antonio Merchán-Baeza
- Research group on Methodology, Methods, Models and Outcomes of Health and Social Sciences (M3O), Faculty of Health Science and Welfare, Centre for Health and Social Care Research (CESS), University of Vic-Central University of Catalonia (UVIC-UCC), Vic (Barcelona), Spain
| | - Maria Rodriguez-Bailon
- Departament of Physiotherapy (Occupational Therapy), University of Malaga, Malaga, Spain
| | - Giorgia Ricchetti
- Departament of Experimental Psychology; Mind, Brain and Behavior Research Center (CIMCYC-UGR), University of Granada, Granada, Spain
| | - Alba Navarro-Egido
- Departament of Experimental Psychology; Mind, Brain and Behavior Research Center (CIMCYC-UGR), University of Granada, Granada, Spain
| | - María Jesús Funes
- Departament of Experimental Psychology; Mind, Brain and Behavior Research Center (CIMCYC-UGR), University of Granada, Granada, Spain
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Chudoba LA, Schmitter-Edgecombe M. Insight into memory and functional abilities in individuals with amnestic mild cognitive impairment. J Clin Exp Neuropsychol 2020; 42:822-833. [PMID: 32957853 DOI: 10.1080/13803395.2020.1817338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Accurate insight into one's abilities facilitates engagement in rehabilitation and implementation of compensatory strategies. In this study, self-awareness, self-monitoring, and a new self-updating construct of insight were examined in amnestic mild cognitive impairment (aMCI). METHOD Individuals with aMCI and healthy older adults (HOAs) completed a list-learning task in a laboratory setting, and a naturalistic task of everyday functioning in a campus apartment along with other standardized neuropsychological tests. Participants made predictions about performance on the memory and functional tasks prior to task experience (self-awareness), immediately after task experience (self-monitoring), and after a delay (self-updating). RESULTS Individuals with aMCI performed more poorly than HOAs on the memory task and other neuropsychological tests but not the functional task. For both the memory and functional task, performance predictions and prediction accuracy measures revealed that the aMCI group exhibited intact self-awareness, self-monitoring, and self-updating. Prediction accuracy measures showed some association with an executive composite but not a memory composite. DISCUSSION Participants with aMCI demonstrated intact self-awareness, self-monitoring, and self-updating for a memory and functional task despite exhibiting poorer performance on neurocognitive tests compared to HOAs. These findings suggest that, even as memory in aMCI degrades, executive abilities may help sustain insight into difficulties, enabling adoption of cognitive strategies to support difficulties.
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Affiliation(s)
- Lisa A Chudoba
- Department of Psychology, Washington State University , Pullman, Washington, USA
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Markova H, Nikolai T, Mazancova AF, Cechova K, Sheardova K, Georgi H, Kopecek M, Laczó J, Hort J, Vyhnalek M. Differences in Subjective Cognitive Complaints Between Non-Demented Older Adults from a Memory Clinic and the Community. J Alzheimers Dis 2020; 70:61-73. [PMID: 31177209 DOI: 10.3233/jad-180630] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Subjective cognitive complaints (SCCs) may represent an early cognitive marker of Alzheimer's disease (AD). There is a need to identify specific SCCs associated with an increased likelihood of underlying AD. OBJECTIVE Using the Questionnaire of Cognitive Complaints (QPC), we evaluated the pattern of SCCs in a clinical sample of non-demented older adults in comparison to cognitively healthy community-dwelling volunteers (HV). METHODS In total, 142 non-demented older adults from the Czech Brain Aging Study referred to two memory clinics for their SCCs were classified as having subjective cognitive decline (SCD, n = 85) or amnestic mild cognitive impairment (aMCI, n = 57) based on a neuropsychological evaluation. Furthermore, 82 age-, education-, and gender-matched HV were recruited. All subjects completed the QPC assessing the presence of specific SCCs in the last six months. RESULTS Both SCD and aMCI groups reported almost two times more SCCs than HV, but they did not differ from each other in the total QPC score. Impression of memory change and Impression of worse memory in comparison to peers were significantly more prevalent in both SCD and aMCI groups in comparison to HV; however, only the latter one was associated with lower cognitive performance. CONCLUSION The pattern of QPC-SCCs reported by SCD individuals was more similar to aMCI individuals than to HV. A complaint about memory change seems unspecific to pathological aging whereas a complaint about worse memory in comparison to peers might be one of the promising items from QPC questionnaire potentially reflecting subtle cognitive changes.
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Affiliation(s)
- Hana Markova
- Department of Neurology, Memory Clinic, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Tomas Nikolai
- Department of Neurology, Memory Clinic, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Neurology and Centre of Clinical Neuroscience, Neuropsychology Laboratory, Charles University, First Faculty of Medicine and General University Hospital in Prague, Czech Republic.,National Institute of Mental Health, Klecany, Czech Republic
| | - Adela Fendrych Mazancova
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Neurology and Centre of Clinical Neuroscience, Neuropsychology Laboratory, Charles University, First Faculty of Medicine and General University Hospital in Prague, Czech Republic
| | - Katerina Cechova
- Department of Neurology, Memory Clinic, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Katerina Sheardova
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Hana Georgi
- National Institute of Mental Health, Klecany, Czech Republic
| | | | - Jan Laczó
- Department of Neurology, Memory Clinic, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Jakub Hort
- Department of Neurology, Memory Clinic, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Martin Vyhnalek
- Department of Neurology, Memory Clinic, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
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Pennington C, Duncan G, Ritchie C. Altered awareness of motor symptoms in Parkinson's disease and Dementia with Lewy Bodies: A systematic review. Int J Geriatr Psychiatry 2020; 35:972-981. [PMID: 32525228 DOI: 10.1002/gps.5362] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 11/12/2022]
Abstract
OBJECTIVES Altered awareness of motor symptoms is reported in people with Parkinson's disease and Dementia with Lewy Bodies, and may adversely affect quality of life and medication concordance. How symptom awareness is influenced by motor and cognitive disease severity, age and medication use is not fully understood. We carried out a systematic review of the literature on motor symptom awareness in Parkinson's disease and Dementia with Lewy Bodies. METHODS Pubmed and Wed of Science were searched for relevant articles published in or prior to March 2019. Data regarding participant demographics, diagnosis, cognitive status, method of assessing awareness and study findings were extracted from relevant publications. RESULTS Sixteen relevant publications were identified. Motor symptom awareness appears to decline over the course of Parkinson's disease. Imaging studies implicate the prefrontal cortex, with different mechanisms involved in hypokinesia and dyskinesia awareness. The hypothesis that people with right hemisphere based disease would have more severely reduced awareness is only weakly supported. Most studies focused on cognitively intact individuals, and on awareness of dyskinesia rather than hypokinesia. CONCLUSIONS Whilst reduced awareness of dyskinesia and to a lesser extent hypokinesia is common, there is a lack of longitudinal data on how awareness changes over time, and how it interacts with global cognitive changes. Motor symptom awareness in Dementia with Lewy Bodies is understudied. Future studies of symptom awareness should include robust assessment of overall cognitive functioning, and use a longitudinal design to elucidate how awareness changes over time. J Am Geriatr Soc 68:-, 2020.
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Affiliation(s)
- Catherine Pennington
- Edinburgh Dementia Prevention, University of Edinburgh, Edinburgh, UK.,Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Gordon Duncan
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Craig Ritchie
- Edinburgh Dementia Prevention, University of Edinburgh, Edinburgh, UK.,Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
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Valera-Bermejo JM, De Marco M, Mitolo M, McGeown WJ, Venneri A. Neuroanatomical and cognitive correlates of domain-specific anosognosia in early Alzheimer's disease. Cortex 2020; 129:236-246. [DOI: 10.1016/j.cortex.2020.04.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/27/2020] [Accepted: 04/28/2020] [Indexed: 02/08/2023]
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Amanzio M, Bartoli M, Cipriani GE, Palermo S. Executive Dysfunction and Reduced Self-Awareness in Patients With Neurological Disorders. A Mini-Review. Front Psychol 2020; 11:1697. [PMID: 32760331 PMCID: PMC7371941 DOI: 10.3389/fpsyg.2020.01697] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 06/22/2020] [Indexed: 11/13/2022] Open
Abstract
Awareness of deficits in patients with neurological disorders may be described as a theoretical unitary phenomenon, which has been analysed reaching interesting results in the last decades. Awareness of deficits manifests itself in a continuum ranging from full awareness to total absence. In line with a neurocognitive approach, a reduction in self-awareness could be explained considering executive dysfunction associated with prefrontal cortex anatomo-functional changes. Our mini-review will focus on reduced self-awareness in neurological disorders, such as Alzheimer’s disease, behavioural Frontotemporal Dementia and Acquired Brain Injuries. Results achieved thanks to an explanatory investigative approach combined with a theoretical reference model will be presented. Data suggest the key role of executive functions in supporting adequate self-awareness towards patients’ cognitive-behavioural profile and instrumental activity autonomy. The Cognitive Awareness Model seems to be one of the best theoretical model to better approach this phenomenon.
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Affiliation(s)
- Martina Amanzio
- Department of Psychology, University of Turin, Turin, Italy.,European Innovation Partnership on Active and Healthy Ageing, Brussels, Belgium
| | | | | | - Sara Palermo
- Department of Psychology, University of Turin, Turin, Italy.,European Innovation Partnership on Active and Healthy Ageing, Brussels, Belgium
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Sunderaraman P, Chapman S, Barker MS, Cosentino S. Self-awareness for financial decision-making abilities in healthy adults. PLoS One 2020; 15:e0235558. [PMID: 32614887 PMCID: PMC7332073 DOI: 10.1371/journal.pone.0235558] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/17/2020] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Decades of research have established how to measure metacognition (i.e., awareness of one's cognitive abilities), whereas relatively little is known about how to assess the integrity of financial awareness (FA; awareness of one's financial abilities), a related construct with practical implications for vulnerable older adults. The current study's goal was to apply established metacognitive frameworks to identify an objective measure of FA. METHODS Metacognitive ratings were integrated into two financial decision making (FDM) assessments in order to derive two types of FA metrics: absolute accuracy (calibration) and relative accuracy (resolution) in each FDM task. Associations between each FA metric, demographic variables, FDM performances, and metamemory were examined. DESIGN & SETTING Cross-sectional, community-based, prospective study. PARTICIPANTS 93 individuals with mean age = 59 years (SD = 15.12); mean education = 15.70 (SD = 2.39); 60% females. MEASURES FA was calculated using the Financial Competency Assessment Inventory (FCAI) and Decision Making Competence Assessment Tool, Finance Module (DMC-F), and memory awareness was calculated using an objective metamemory test. RESULTS None of the FA metrics was associated with age, education or gender. FCAI calibration was inversely associated with FDM, and positively correlated with DMC-F calibration and metamemory calibration. None of the FA metrics for DMC-F was associated with metamemory. CONCLUSIONS Mirroring findings from metamemory studies, overconfidence in FDM was associated with lower FDM accuracy in healthy adults. Moreover, calibration scores on the FCAI and metamemory were related, suggesting that FA taps into metacognitive abilities. Our findings provide preliminary evidence for how to measure FA in both clinical and research contexts.
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Affiliation(s)
- Preeti Sunderaraman
- Cognitive Neuroscience Division of the Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Medical Center, New York, NY, United States of America
- Gertrude. H. Sergievsky Center, Columbia University Medical Center, New York, NY, United States of America
- Department of Neurology, Columbia University Medical Center, New York, NY, United States of America
| | - Silvia Chapman
- Cognitive Neuroscience Division of the Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Medical Center, New York, NY, United States of America
- Gertrude. H. Sergievsky Center, Columbia University Medical Center, New York, NY, United States of America
- Department of Neurology, Columbia University Medical Center, New York, NY, United States of America
| | - Megan S. Barker
- Cognitive Neuroscience Division of the Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Medical Center, New York, NY, United States of America
- Gertrude. H. Sergievsky Center, Columbia University Medical Center, New York, NY, United States of America
- Department of Neurology, Columbia University Medical Center, New York, NY, United States of America
| | - Stephanie Cosentino
- Cognitive Neuroscience Division of the Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Medical Center, New York, NY, United States of America
- Gertrude. H. Sergievsky Center, Columbia University Medical Center, New York, NY, United States of America
- Department of Neurology, Columbia University Medical Center, New York, NY, United States of America
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Hallam B, Chan J, Gonzalez Costafreda S, Bhome R, Huntley J. What are the neural correlates of meta-cognition and anosognosia in Alzheimer's disease? A systematic review. Neurobiol Aging 2020; 94:250-264. [PMID: 32679396 PMCID: PMC7903321 DOI: 10.1016/j.neurobiolaging.2020.06.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 05/26/2020] [Accepted: 06/11/2020] [Indexed: 12/20/2022]
Abstract
Awareness of one's own cognitive processes (metacognition) or of one's own illness or deficits (anosognosia) can be impaired in people with Alzheimer's disease (AD). The neural correlates of anosognosia within AD remain inconclusive. Understanding anosognosia is of importance because of its impact on carer burden and increased institutionalization. A systematic review of structural and functional neuroimaging studies was conducted to identify specific brain regions associated with anosognosia within AD. Thirty-two studies were included in the systematic review. Reduced gray matter density, cerebral blood flow, and hypometabolism in 8 key regions were significantly associated with increased anosognosia scores in people with AD. The most frequently associated regions were the inferior frontal gyrus, anterior cingulate cortex, and medial temporal lobe. Other key regions include the superior frontal gyrus, medial frontal gyrus, orbitofrontal cortex, posterior cingulate cortex, and the insula. Identifying brain regions associated with anosognosia can aid understanding and identification of anosognosia in people with AD and potentially facilitate improvements in care. Thirty-two studies included within the systematic review. Eight key brain regions were linked with anosognosia within Alzheimer's disease. Reduced gray matter density and cerebral blood flow linked with anosognosia. More homogenous studies needed to be able to conduct meta-analysis.
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Affiliation(s)
- Brendan Hallam
- Division of Psychiatry, University College London, London, UK.
| | - Justin Chan
- Division of Psychiatry, University College London, London, UK
| | - Sergi Gonzalez Costafreda
- Division of Psychiatry, University College London, London, UK; Camden and Islington NHS Foundation Trust, London, UK
| | - Rohan Bhome
- Division of Psychiatry, University College London, London, UK
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Brunet HE, Cummings JL, Banks SJ, Miller JB. Awareness of Psychiatric Symptoms in a Mixed Clinical Sample of Older Adults. J Geriatr Psychiatry Neurol 2020; 33:124-134. [PMID: 31401920 DOI: 10.1177/0891988719868311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE This study examined the neuropsychological correlates and impact on caregiver distress of reduced awareness of mood symptoms in patients with suspected neurodegenerative disease. METHOD Records from a clinical sample of older adults were examined (N = 940). RESULTS More than one-third of patient and caregiver ratings of mood symptoms did not agree (comparing patient and caregiver self-report measures); 27.9% of patients were unaware of depression (UoD) and 16.6% of patients were unaware of anxiety (UoA). The UoD group exhibited poorer verbal memory and executive abilities and the UoA group exhibited poorer verbal memory than those with preserved awareness. Unawareness was not associated with caregiver distress. CONCLUSIONS These findings highlight the importance of capturing informant report in clinical practice with older adults suspected of cognitive impairment. Unawareness of mood symptoms was related to memory dysfunction and-to a lesser extent-to executive abilities and may have implications for addressing patient and caregiver needs for disorders affecting these cognitive systems.
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Affiliation(s)
- Hannah E Brunet
- Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV, USA
| | - Jeffrey L Cummings
- Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV, USA.,School of Allied Health Sciences, University of Nevada, Las Vegas, Las Vegas, NV, USA
| | - Sarah J Banks
- University of California San Diego, San Diego, CA, USA
| | - Justin B Miller
- Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV, USA
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d'Oleire Uquillas F, Jacobs HIL, Schultz AP, Hanseeuw BJ, Buckley RF, Sepulcre J, Pascual-Leone A, Donovan NJ, Johnson KA, Sperling RA, Vannini P. Functional and Pathological Correlates of Judgments of Learning in Cognitively Unimpaired Older Adults. Cereb Cortex 2020; 30:1974-1983. [PMID: 31696223 DOI: 10.1093/cercor/bhz217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 08/18/2019] [Accepted: 08/20/2019] [Indexed: 11/14/2022] Open
Abstract
Judgments of learning (JOL) pertain to introspective metamemory processes evaluating how well information is learned. Using a functional magnetic resonance imaging (fMRI) task, we investigated the neural substrates of JOL predictions in a group of 105 cognitively unimpaired older adults from the Harvard Aging Brain Study. Associations of JOL performance and its neural correlates with amyloid-β (Aβ) and tau pathology, two proteinopathies associated with Alzheimer's disease (AD) and aging, were also examined. We found that trials judged as learned well relative to trials judged as learned less well (high JOL > low JOL) engaged the ventromedial prefrontal cortex and precuneus, among other midline regions, in addition to bilateral hippocampi. In this cohort of older adults, greater levels of entorhinal tau deposition were associated with overestimation of memory performance and with lower fMRI signal in midline regions during predicted memory success. No associations with Aβ were found. The findings suggest that tau pathology in unimpaired older adults may play a role in altered metamemory processes. We discuss our findings in light of the hypothesis that JOLs are partially dependent on a process involving attempts to retrieve a correct answer from memory, as well as implications for clinical research investigating unawareness of memory performance (i.e., anosognosia) in patients with AD dementia.
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Affiliation(s)
| | - Heidi I L Jacobs
- Division of Nuclear Medicine, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.,School for Mental Health and Neuroscience, Alzheimer Centre Limburg, Maastricht University, Maastricht 6200 MD, Limburg, The Netherlands
| | - Aaron P Schultz
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Bernard J Hanseeuw
- Division of Nuclear Medicine, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.,Department of Neurology, Saint-Luc University Hospital, Institute of Neuroscience, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Rachel F Buckley
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.,Florey Institutes of Neuroscience and Mental Health, University of Melbourne, 3010 Melbourne, Australia.,Melbourne School of Psychological Science, University of Melbourne, 3010 Melbourne, Australia
| | - Jorge Sepulcre
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.,Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02129, USA
| | - Alvaro Pascual-Leone
- Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Hinda and Arthur Marcus Institute for Aging Research and the Center for Memory Health at Hebrew SeniorLife, Boston, MA 02131, USA
| | - Nancy J Donovan
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.,Division of Geriatric Psychiatry, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Keith A Johnson
- Division of Nuclear Medicine, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.,Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Reisa A Sperling
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.,Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Patrizia Vannini
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.,Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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Chapman S, Colvin LE, Cosentino S. Translational Aspects of the Multidisciplinary Study of Metacognition. TRANSLATIONAL ISSUES IN PSYCHOLOGICAL SCIENCE 2020; 6:26-31. [PMID: 33728364 DOI: 10.1037/tps0000224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Metacognition, self-awareness, self-knowledge, and insight each refer to the process by which individuals reflect upon and appraise their own abilities. Self-awareness is a complex, dynamic, and multifactorial construct that spans various domains such as motor, sensory, functional and cognitive abilities. Various disciplines including cognitive psychology, neuropsychology, psychiatry and neurology have attempted to understand healthy and pathologic self-awareness of cognition in particular. Although intrinsically connected, the study of healthy and pathologic states of self-awareness have remained relatively discrete from one another. Indeed, different disciplines examining self-awareness of cognition have operationalized and measured awareness through distinct theoretical frameworks. More recently, however, various authors have attempted to bridge constructs across disciplines in an effort to develop a unitary theoretical model for self-awareness of cognitive abilities. In this commentary, we summarize the study of self-awareness of cognitive abilities across various disciplines, highlighting translational aspects between them.
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Affiliation(s)
- Silvia Chapman
- Cognitive Neuroscience Section of the Gertrude H. Sergievsky Center, Taub Institute for Research on Alzheimer's Disease and the Aging Brain, and the Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Leigh E Colvin
- Cognitive Neuroscience Section of the Gertrude H. Sergievsky Center, Taub Institute for Research on Alzheimer's Disease and the Aging Brain, and the Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.,Teachers College, Columbia University, New York, NY, USA
| | - Stephanie Cosentino
- Cognitive Neuroscience Section of the Gertrude H. Sergievsky Center, Taub Institute for Research on Alzheimer's Disease and the Aging Brain, and the Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
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