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Msika EF, Verny M, Dieudonné B, Ehrlé N, Gaston-Bellegarde A, Orriols E, Piolino P, Narme P. Multidimensional assessment of social cognition using non-immersive virtual reality in dementia with Lewy bodies and Alzheimer's disease: an exploratory study. J Clin Exp Neuropsychol 2024:1-16. [PMID: 38814171 DOI: 10.1080/13803395.2024.2357362] [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: 09/25/2023] [Accepted: 05/14/2024] [Indexed: 05/31/2024]
Abstract
INTRODUCTION Few studies have focused on social cognition in dementia with Lewy bodies (DLB), even though some brain structures being well known as underlying social cognitive processes are directly impacted in this disease. Furthermore, social cognition processes have been mostly studied independently using evaluations with poor ecological validity. We aimed at studying the ability of a new naturalistic and multidimensional social cognition task to reveal impairments in DLB patients. We chose to compare the profile of these patients with that of Alzheimer's disease (AD) patients, for which social cognition is better preserved. METHOD Fifteen patients (DLB: n = 7; AD: n = 8) and 28 healthy controls underwent the REALSoCog task. They encountered several social situations (e.g. control versus transgressions) in a non-immersive virtual city environment allowing the assessment of moral cognition, cognitive and affective theory of mind (ToM), emotional empathy and behavioral intentions. RESULTS The main results showed (i) a lower ability to detect transgressions in DLB patients, particularly conventional ones, whereas moral cognition seemed better preserved in AD patients; (ii) a cognitive ToM impairment in both DLB and AD patients, while affective ToM is impaired only in DLB patients; (iii) a decreased emotional empathy specifically observed in DLB patients; (iv) more inappropriate behavioral intentions, mainly in DLB patients, but also in some AD patients. CONCLUSIONS This study suggests the feasibility and potential interest of the REALSoCog task in revealing social cognition deficits, particularly for DLB patients by showing different social patterns as compared to AD patients. These results offer interesting clinical perspectives to develop more naturalistic tasks in such populations and for clinical differential diagnosis. Limitations and future perspectives are discussed.
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Affiliation(s)
- Eva-Flore Msika
- Laboratoire Mémoire Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, UR, France
| | - Marc Verny
- Département de Gériatrie, Pitié-Salpêtrière, Hôpitaux Universitaires Pitié-Salpêtrière - Charles Foix, Assistance Publique - Hôpitaux de Paris, Paris, France
- Team Neuronal Cell Biology & Pathology, Sorbonne University, UMR8256 (CNRS), Paris, France
| | - Bénédicte Dieudonné
- Département de Gériatrie, Pitié-Salpêtrière, Hôpitaux Universitaires Pitié-Salpêtrière - Charles Foix, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Nathalie Ehrlé
- Laboratoire Mémoire Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, UR, France
- Service de Neurologie, CHU Maison-Blanche, Reims, France
| | | | - Eric Orriols
- Laboratoire Mémoire Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, UR, France
| | - Pascale Piolino
- Laboratoire Mémoire Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, UR, France
| | - Pauline Narme
- Laboratoire Mémoire Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, UR, France
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Msika EF, Despres M, Piolino P, Narme P. Dynamic and/or multimodal assessments for social cognition in neuropsychology: Results from a systematic literature review. Clin Neuropsychol 2024; 38:922-962. [PMID: 37904259 DOI: 10.1080/13854046.2023.2266172] [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: 03/21/2023] [Accepted: 09/27/2023] [Indexed: 11/01/2023]
Abstract
Objective: Despite the prevalence of socio-cognitive disturbances, and their important diagnostic/therapeutic implications, the assessment of these disturbances remains scarce. This systematic review aims to identify available social cognition tools for adult assessment that use multimodal and/or dynamic social cues, specifying their strengths and limitations (e.g. from a methodological, psychometric, ecological, and clinical perspective). Method: An electronic search was conducted in Pubmed, PsychINFO, Embase and Scopus databases for articles published up to the 3th of January 2023 and the first 200 Google Scholar results on the same date. The PRISMA methodology was applied, 3884 studies were screened based on title and abstract and 329 full texts were screened. Articles using pseudo-dynamic methodologies (e.g. morphing), reported only subjective or self-reported measures, or investigated only physiological or brain activity responses were excluded. Results: In total, 149 works were included in this review, representing 65 assessment tools (i.e. 48% studying emotion recognition (n = 31), 32% Theory of Mind (n = 21), 5% empathy (n = 3), 1.5% moral cognition/social reasoning (n = 1), and 14% being multimodal (n = 9)). For each study, the tool's main characteristics, psychometric properties, ecological validity indicators and available norms are reported. The tools are presented according to social-cognitive process assessed and communication channels used. Conclusions: This study highlights the lack of validated and standardized tools. A few tools appear to partially meet some clinical needs. The development of methodologies using a first-person paradigm and taking into account the multidimensional nature of social cognition seems a relevant research endeavour for greater ecological validity.
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Affiliation(s)
- Eva-Flore Msika
- Laboratoire Mémoire, Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, France
| | - Mathilde Despres
- Laboratoire Mémoire, Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, France
| | - Pascale Piolino
- Laboratoire Mémoire, Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, France
| | - Pauline Narme
- Laboratoire Mémoire, Cerveau et Cognition, Université Paris Cité, Boulogne-Billancourt, France
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Tsiakiri A, Trypsiani I, Christidi F, Trypsianis G, Bakirtzis C, Vlotinou P, Tsiptsios D, Voskou P, Papageorgiou S, Aggelousis N, Vadikolias K, Serdari A. The testamentary capacity in acute stroke. A cross-sectional study. APPLIED NEUROPSYCHOLOGY. ADULT 2024:1-11. [PMID: 38447221 DOI: 10.1080/23279095.2024.2324126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Succession law, which governs the creation and validity of wills, is closely tied to testamentary capacity (TC), the cognitive competence required for a valid will. This study explores TC in acute stroke patients and its connections to demographic and clinical characteristics. The research included first-time stroke patients admitted within 24 hours of symptom onset, meeting specific criteria. Data were collected, and assessment tools like the Addenbrooke's Cognitive Examination III (ACE-III) and Testamentary Capacity Assessment Tool (TCAT) were used. The study found that TCAT scores were not significantly affected by age or gender but positively correlated with education, the Barthel Index and ACE-III scores. They were negatively associated with National Institutes of Health Stroke Scale (NIHSS) and Modified Rankin Scale (mRS) scores. Specific cognitive domains, particularly memory and attention, were independent determinants of TCAT scores. This research introduces TCAT as a valuable tool for evaluating testamentary capacity in stroke patients and highlights the multifaceted nature of TC, emphasizing the need for a nuanced approach. As the population ages and complex medical conditions become more prevalent, understanding the interplay between cognitive functioning and testamentary capacity becomes increasingly crucial for both legal and medical professionals.
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Affiliation(s)
- Anna Tsiakiri
- Neurology Department, Democritus University of Thrace, Alexandroupolis, Greece
| | - Ioanna Trypsiani
- Neurology Department, Democritus University of Thrace, Alexandroupolis, Greece
| | - Foteini Christidi
- Neurology Department, Democritus University of Thrace, Alexandroupolis, Greece
| | - Gregory Trypsianis
- Laboratory of Medical Statistics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Christos Bakirtzis
- B' Department of Neurology and the MS Center, AHEPA University Hospital, Central Macedonia, Thessaloniki, Greece
| | - Pinelopi Vlotinou
- Department of Occupational Therapy, University of West Attica, Athens, Greece
| | - Dimitrios Tsiptsios
- Neurology Department, Democritus University of Thrace, Alexandroupolis, Greece
| | - Panagiota Voskou
- Cognitive Disorders/Dementia Unit, 2nd Department of Neurology, National and Kapodistrian University of Athens, Athens, Greece
| | - Sokratis Papageorgiou
- Cognitive Disorders/Dementia Unit, 2nd Department of Neurology, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Aggelousis
- Department of Physical Education and Sport Science, Democritus University of Thrace, Komotini, Greece
| | | | - Aspasia Serdari
- Department of Child and Adolescent, Democritus University of Thrace, Alexandroupolis, Greece
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4
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Franzen S, Nuytemans K, Bourdage R, Caramelli P, Ellajosyula R, Finger E, Illán-Gala I, Loi SM, Morhardt D, Pijnenburg Y, Rascovsky K, Williams MM, Yokoyama J, Alladi S, Broce I, Castro-Suarez S, Coleman K, de Souza LC, Dacks PA, de Boer SCM, de Leon J, Dodge S, Grasso S, Gupta V, Gupta V, Ghoshal N, Kamath V, Kumfor F, Matias-Guiu JA, Narme P, Nielsen TR, Okhuevbie D, Piña-Escudero SD, Garcia RR, Scarioni M, Slachevsky A, Suarez-Gonzalez A, Tee BL, Tsoy E, Ulugut H, Babulal GM, Onyike CU. Gaps in clinical research in frontotemporal dementia: A call for diversity and disparities-focused research. Alzheimers Dement 2023; 19:5817-5836. [PMID: 37270665 PMCID: PMC10693651 DOI: 10.1002/alz.13129] [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: 01/12/2023] [Accepted: 02/06/2023] [Indexed: 06/05/2023]
Abstract
Frontotemporal dementia (FTD) is one of the leading causes of dementia before age 65 and often manifests as abnormal behavior (in behavioral variant FTD) or language impairment (in primary progressive aphasia). FTD's exact clinical presentation varies by culture, language, education, social norms, and other socioeconomic factors; current research and clinical practice, however, is mainly based on studies conducted in North America and Western Europe. Changes in diagnostic criteria and procedures as well as new or adapted cognitive tests are likely needed to take into consideration global diversity. This perspective paper by two professional interest areas of the Alzheimer's Association International Society to Advance Alzheimer's Research and Treatment examines how increasing global diversity impacts the clinical presentation, screening, assessment, and diagnosis of FTD and its treatment and care. It subsequently provides recommendations to address immediate needs to advance global FTD research and clinical practice.
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Affiliation(s)
- Sanne Franzen
- Department of Neurology and Alzheimer Center, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Karen Nuytemans
- John P. Hussman Institute for Human Genomics and Dr. John T. Macdonald Department of Human Genetics, University of Miami, Miller School of Medicine, Miami, FL
| | - Renelle Bourdage
- Department of Neurology and Alzheimer Center, Erasmus MC University Medical Center, Rotterdam, the Netherlands
- Laboratoire Mémoire Cerveau et Cognition (UR 7536), Institut de Psychologie, Université Paris Cité, Boulogne-Billancourt, France
| | - Paulo Caramelli
- Behavioral and Cognitive Neurology Research Group, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte (MG), Brazil
| | - Ratnavalli Ellajosyula
- Manipal Hospitals, Bangalore and Annasawmy Mudaliar Hospital, Bangalore, India
- Manipal Academy of Higher Education (MAHE), India
| | - Elizabeth Finger
- Parkwood Institute Research, London, Ontario, Canada
- Robarts Research Institute, University of Western Ontario, London, Ontario, Canada
- Department of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Ignacio Illán-Gala
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Centro de Investigación en Red-Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
| | - Samantha M. Loi
- Neuropsychiatry, Royal Melbourne Hospital, Parkville VIC Australia 3050
- Department of Psychiatry, University of Melbourne, Parkville VIC Australia 3052
| | - Darby Morhardt
- Mesulam Center for Cognitive Neurology and Alzheimer’s Disease and Department of Preventive Medicine, Northwestern University Feinberg School of Medicine
| | - Yolande Pijnenburg
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, The Netherlands
| | - Katya Rascovsky
- Department of Neurology and Penn Frontotemporal Degeneration Center, University of Pennsylvania Perelman School of Medicine
| | | | - Jennifer Yokoyama
- Memory and Aging Center, Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94158, USA
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Suvarna Alladi
- National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Iris Broce
- Department of Neurosciences, UC San Diego
- Department of Neurology, UC San Francisco
| | - Sheila Castro-Suarez
- CBI en Demencias y Enfermedades Desmielinizantes del Sistema Nervioso, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
- Atlantic Senior Fellow for Equity in Brain Health at the University of California San Francisco, San Francisco, CA, 94115, USA
| | | | - Leonardo Cruz de Souza
- Department of Internal Medicine, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Sterre C. M. de Boer
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, The Netherlands
| | - Jessica de Leon
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA
| | - Shana Dodge
- The Association for Frontotemporal Degeneration
| | - Stephanie Grasso
- Speech, Language and Hearing Sciences, The University of Texas at Austin
| | - Veer Gupta
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3216, Australia
| | - Vivek Gupta
- Macquarie Medical school, Faculty of Medicine, Health and Human Sciences, Macquarie University, NSW, Australia
| | - Nupur Ghoshal
- Depts. of Neurology and Psychiatry, Knight Alzheimer Disease Research Center, Washington University School of Medicine
| | - Vidyulata Kamath
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Fiona Kumfor
- The University of Sydney, Brain & Mind Centre and the School of Psychology, Sydney, Australia
| | - Jordi A. Matias-Guiu
- Department of Neurology, Hospital Clinico San Carlos, San Carlos Institute for Health Research (IdiSSC), Universidad Complutense, Madrid, Spain
| | - Pauline Narme
- Laboratoire Mémoire Cerveau et Cognition (UR 7536), Institut de Psychologie, Université Paris Cité, Boulogne-Billancourt, France
| | - T. Rune Nielsen
- Danish Dementia Research Center, Department of Neurology, The Neuroscience Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Daniel Okhuevbie
- Department of Cell Biology and Genetics, University of Lagos, Nigeria
- Department of Comparative Biosciences, University of Wisconsin-Madison, USA
| | - Stefanie D. Piña-Escudero
- Global Brain Health Institute at the Memory and Aging Center. University of California, San Francisco, USA
| | - Ramiro Ruiz Garcia
- Instituto Nacional de Neurología y Neurocirurgía Manuel Velasco Suárez, Mexico DF, Mexico
| | - Marta Scarioni
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Andrea Slachevsky
- Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile
- Neuropsychology and Clinical Neuroscience Laboratory (LANNEC), Physiopathology Department - Intitute of Biomedical Sciences (ICBM), Neurocience and East Neuroscience Departments, Faculty of Medicine, University of Chile, Santiago, Chile
- Memory and Neuropsychiatric Center (CMYN), Memory Unit, Neurology Department, Hospital del Salvador and Faculty of Medicine, University of Chile, Santiago, Chile
- Servicio de Neurología, Departamento de Medicina, Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - Aida Suarez-Gonzalez
- Dementia Research Centre, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Boon Lead Tee
- Memory and Aging Center, University of California at San Francisco, San Francisco, CA, United States
- Department of Neurology, Dyslexia Center, University of California, San Francisco, CA, United States
- Global Brain Health Institute, University of California, San Francisco, United States
| | - Elena Tsoy
- Speech, Language and Hearing Sciences, The University of Texas at Austin
- Global Brain Health Institute, University of California San Francisco and Trinity College Dublin
| | - Hülya Ulugut
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, The Netherlands
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA
| | - Ganesh M. Babulal
- Department of Neurology, Washington University in St. Louis, St. Louis, MO, USA
- Institute of Public Health, Washington University in St. Louis, St. Louis, MO, USA
- Department of Psychology, Faculty of Humanities, University of Johannesburg, South Africa
- Department of Clinical Research and Leadership, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Chiadi U. Onyike
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Tafuri B, Urso D, Nigro S, Macchitella L, De Blasi R, Ray Chaudhuri K, Logroscino G. Grey-matter correlates of empathy in 4-Repeat Tauopathies. NPJ Parkinsons Dis 2023; 9:138. [PMID: 37758794 PMCID: PMC10533505 DOI: 10.1038/s41531-023-00576-z] [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: 02/01/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Loss of empathy is an early and central symptom of frontotemporal lobar degeneration spectrum diseases. We aimed to investigate the topographical distribution of morphometric brain changes associated with empathy in Progressive Supranuclear Palsy (PSP) and Corticobasal Syndrome (CBS) patients. Twenty-seven participants with CBS and 31 with PSP were evaluated using Interpersonal Reactivity Index scales in correlation with gray matter atrophy using a voxel-based morphometry approach. Lower levels of empathy were associated with an increased atrophy in fronto-temporal cortical structures. At subcortical level, empathy scores were positively correlated with gray matter volume in the amygdala, hippocampus and the cerebellum. These findings allow to extend the traditional cortico-centric view of cognitive empathy to the cerebellar regions in patients with neurodegenerative disorders and suggest that the cerebellum may play a more prominent role in social cognition than previously appreciated.
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Affiliation(s)
- Benedetta Tafuri
- Center for Neurodegenerative Diseases and the Aging Brain, University of Bari 'Aldo Moro', "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy
- Department of Translational Biomedicine and Neuroscience (DiBraiN), University of Bari 'Aldo Moro', Bari, Italy
| | - Daniele Urso
- Center for Neurodegenerative Diseases and the Aging Brain, University of Bari 'Aldo Moro', "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy
- Department of Neurosciences, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London, UK
| | - Salvatore Nigro
- Center for Neurodegenerative Diseases and the Aging Brain, University of Bari 'Aldo Moro', "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy
- Institute of Nanotechnology (NANOTEC), National Research Council, Lecce, Italy
| | - Luigi Macchitella
- IRCCS "E. Medea"- Unit for Severe disabilities in developmental age and young adults (Developmental Neurology and Neurorehabilitation), Brindisi, Italy
| | - Roberto De Blasi
- Center for Neurodegenerative Diseases and the Aging Brain, University of Bari 'Aldo Moro', "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy
| | - K Ray Chaudhuri
- Department of Neurosciences, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London, UK
| | - Giancarlo Logroscino
- Center for Neurodegenerative Diseases and the Aging Brain, University of Bari 'Aldo Moro', "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy.
- Department of Translational Biomedicine and Neuroscience (DiBraiN), University of Bari 'Aldo Moro', Bari, Italy.
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Williams RS, Adams NE, Hughes LE, Rouse MA, Murley AG, Naessens M, Street D, Holland N, Rowe JB. Syndromes associated with frontotemporal lobar degeneration change response patterns on visual analogue scales. Sci Rep 2023; 13:8939. [PMID: 37268659 DOI: 10.1038/s41598-023-35758-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/23/2023] [Indexed: 06/04/2023] Open
Abstract
Self-report scales are widely used in cognitive neuroscience and psychology. However, they rest on the central assumption that respondents engage meaningfully. We hypothesise that this assumption does not hold for many patients, especially those with syndromes associated with frontotemporal lobar degeneration. In this study we investigated differences in response patterns on a visual analogue scale between people with frontotemporal degeneration and controls. We found that people with syndromes associated with frontotemporal lobar degeneration respond with more invariance and less internal consistency than controls, with Bayes Factors = 15.2 and 14.5 respectively indicating strong evidence for a group difference. There was also evidence that patient responses feature lower entropy. These results have important implications for the interpretation of self-report data in clinical populations. Meta-response markers related to response patterns, rather than the values reported on individual items, may be an informative addition to future research and clinical practise.
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Affiliation(s)
- Rebecca S Williams
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK.
| | - Natalie E Adams
- Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
| | - Laura E Hughes
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
| | - Matthew A Rouse
- Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
| | - Alexander G Murley
- Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
| | - Michelle Naessens
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
| | - Duncan Street
- Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
| | - Negin Holland
- Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
| | - James B Rowe
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
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Barker MS, Dodge SG, Niehoff D, Denny S, Dacks PA, Dickinson S, Cosentino S, Wheaton DK. Living With Frontotemporal Degeneration: Diagnostic Journey, Symptom Experiences, and Disease Impact. J Geriatr Psychiatry Neurol 2023; 36:201-214. [PMID: 35943443 PMCID: PMC10114256 DOI: 10.1177/08919887221119976] [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] [Indexed: 11/16/2022]
Abstract
Frontotemporal degeneration (FTD) is an umbrella term encompassing a range of rare neurodegenerative disorders that cause progressive declines in cognition, behavior, and personality. Hearing directly from individuals living with FTD and their care partners is critical in optimizing care, identifying meaningful clinical trial endpoints, and improving research recruitment and retention. The current paper presents a subset of data from the FTD Insights Survey, chronicling the diagnostic journey, symptoms, and the impact of FTD on distress, quality of life, and independence, in the mild to moderate stages of the disease. Survey respondents included 219 individuals diagnosed with FTD and 437 current care partners, representing a range of FTD diagnoses. Around half of survey respondents reported seeing three or more doctors before an FTD diagnosis was given, and a range of prior diagnoses were noted. Most frequently endorsed symptoms tended to be consistent with clinical characteristics of the specific diagnosis, though there was significant variability in symptoms reported within diagnostic categories as well as considerable overlap in symptoms between diagnostic categories. Cognitive and language symptoms of FTD were generally most distressing to the person diagnosed, and a loss of independence was endorsed as affecting quality of life. The distinct perspectives of diagnosed persons and care partners regarding disease impact differed notably for bvFTD/Pick's disease. Participating independently in a range of activities, within the home, outside the home, and with other people, were reported as challenging for people living with FTD, underscoring the degree to which the lives of these individuals are affected even at the mild and moderate stages of disease. Overall, by heeding the perspectives of those living with FTD, we can begin to design more meaningful research studies, provide better care, and develop therapies that improve quality of life.
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Affiliation(s)
- Megan S. Barker
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, USA
| | - Shana G. Dodge
- The Association for Frontotemporal Degeneration, King of Prussia, PA, USA
| | - Debra Niehoff
- The Association for Frontotemporal Degeneration, King of Prussia, PA, USA
| | - Sharon Denny
- The Association for Frontotemporal Degeneration, King of Prussia, PA, USA
| | - Penny A. Dacks
- The Association for Frontotemporal Degeneration, King of Prussia, PA, USA
- FTD Disorders Registry, LLC, King of Prussia, PA, USA
| | - Susan Dickinson
- The Association for Frontotemporal Degeneration, King of Prussia, PA, USA
| | - Stephanie Cosentino
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, USA
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, USA
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
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8
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Dilcher R, Malpas CB, O'Brien TJ, Vivash L. Social Cognition in Behavioral Variant Frontotemporal Dementia and Pathological Subtypes: A Narrative Review. J Alzheimers Dis 2023; 94:19-38. [PMID: 37212100 DOI: 10.3233/jad-221171] [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] [Indexed: 05/23/2023]
Abstract
Behavioral variant frontotemporal dementia (bvFTD) belongs to the spectrum of frontotemporal lobar degeneration (FTLD) and is characterized by frontal dysfunction with executive deficits and prominent socioemotional impairments. Social cognition, such as emotion processing, theory of mind, and empathy may significantly impact daily behavior in bvFTD. Abnormal protein accumulation of tau or TDP-43 are the main causes of neurodegeneration and cognitive decline. Differential diagnosis is difficult due to the heterogeneous pathology in bvFTD and the high clinicopathological overlap with other FTLD syndromes, especially in late disease stages. Despite recent advances, social cognition in bvFTD has not yet received sufficient attention, nor has its association with underlying pathology. This narrative review evaluates social behavior and social cognition in bvFTD, by relating these symptoms to neural correlates and underlying molecular pathology or genetic subtypes. Negative and positive behavioral symptoms, such as apathy and disinhibition, share similar brain atrophy and reflect social cognition. More complex social cognitive impairments are probably caused by the interference of executive impairments due to increasing neurodegeneration. Evidence suggests that underlying TDP-43 is associated with neuropsychiatric and early social cognitive dysfunction, while patients with underlying tau pathology are marked by strong cognitive dysfunction with increasing social impairments in later stages. Despite many current research gaps and controversies, finding distinct social cognitive markers in association to underlying pathology in bvFTD is essential for validating biomarkers, for clinical trials of novel therapies, and for clinical practice.
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Affiliation(s)
- Roxane Dilcher
- Department of Neurosciences, Central Clinical School, Monash University, Melbourne, Australia
| | - Charles B Malpas
- Department of Neurosciences, Central Clinical School, Monash University, Melbourne, Australia
- Department of Medicine and Radiology, The University of Melbourne, Parkville, Australia
- Department of Neurology, Royal Melbourne Hospital, Parkville, Australia
- Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Australia
- Department of Neurology, Alfred Hospital, Melbourne, Australia
| | - Terence J O'Brien
- Department of Neurosciences, Central Clinical School, Monash University, Melbourne, Australia
- Department of Medicine and Radiology, The University of Melbourne, Parkville, Australia
- Department of Neurology, Royal Melbourne Hospital, Parkville, Australia
- Department of Neurology, Alfred Hospital, Melbourne, Australia
| | - Lucy Vivash
- Department of Neurosciences, Central Clinical School, Monash University, Melbourne, Australia
- Department of Medicine and Radiology, The University of Melbourne, Parkville, Australia
- Department of Neurology, Royal Melbourne Hospital, Parkville, Australia
- Department of Neurology, Alfred Hospital, Melbourne, Australia
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9
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Silverman HE, Ake JM, Manoochehri M, Appleby BS, Brushaber D, Devick KL, Dickerson BC, Fields JA, Forsberg LK, Ghoshal N, Graff‐Radford NR, Grossman M, Heuer HW, Kornak J, Lapid MI, Litvan I, Mackenzie IR, Mendez MF, Onyike CU, Pascual B, Tartaglia MC, Boeve BF, Boxer AL, Rosen HJ, Cosentino S, Huey ED, Barker MS, Goldman JS. The contribution of behavioral features to caregiver burden in FTLD spectrum disorders. Alzheimers Dement 2022; 18:1635-1649. [PMID: 34854532 PMCID: PMC9160199 DOI: 10.1002/alz.12494] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/09/2021] [Accepted: 09/07/2021] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Caregivers of patients with frontotemporal lobar degeneration (FTLD) spectrum disorders experience tremendous burden, which has been associated with the neuropsychiatric and behavioral features of the disorders. METHODS In a sample of 558 participants with FTLD spectrum disorders, we performed multiple-variable regressions to identify the behavioral features that were most strongly associated with caregiver burden, as measured by the Zarit Burden Interview, at each stage of disease. RESULTS Apathy and disinhibition, as rated by both clinicians and caregivers, as well as clinician-rated psychosis, showed the strongest associations with caregiver burden, a pattern that was consistent when participants were separated cross-sectionally by disease stage. In addition, behavioral features appeared to contribute most to caregiver burden in patients with early dementia. DISCUSSION Caregivers should be provided with early education on the management of the behavioral features of FTLD spectrum disorders. Interventions targeting apathy, disinhibition, and psychosis may be most useful to reduce caregiver burden.
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Affiliation(s)
- Hannah E. Silverman
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain and Gertrude H. Sergievsky CenterDepartment of NeurologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Jeannie M. Ake
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain and Gertrude H. Sergievsky CenterDepartment of NeurologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Masood Manoochehri
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain and Gertrude H. Sergievsky CenterDepartment of NeurologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Brian S. Appleby
- Department of NeurologyCase Western Reserve UniversityClevelandOhioUSA
| | - Danielle Brushaber
- Division of Clinical Trials and BiostatisticsDepartment of Quantitative Health SciencesMayo ClinicRochesterMinnesotaUSA
| | - Katrina L. Devick
- Division of Clinical Trials and BiostatisticsDepartment of Quantitative Health SciencesMayo ClinicRochesterMinnesotaUSA
| | - Bradford C. Dickerson
- Department of NeurologyFrontotemporal Disorders UnitMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Julie A. Fields
- Division of Neurocognitive DisordersDepartment of Psychiatry and PsychologyMayo ClinicRochesterMinnesotaUSA
| | | | - Nupur Ghoshal
- Department of NeurologyWashington UniversitySt. LouisMissouriUSA
| | | | - Murray Grossman
- Penn Frontotemporal Degeneration CenterDepartment of NeurologyPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Hilary W. Heuer
- Department of NeurologyMemory and Aging CenterUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
| | - John Kornak
- Department of Epidemiology and BiostatisticsUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
| | - Maria I. Lapid
- Division of Neurocognitive DisordersDepartment of Psychiatry and PsychologyMayo ClinicRochesterMinnesotaUSA
| | - Irene Litvan
- Department of NeuroscienceUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - Ian R. Mackenzie
- Department of Pathology and Laboratory MedicineUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Mario F. Mendez
- Department of NeurologyUniversity of CaliforniaLos AngelesCaliforniaUSA
- Department of Psychiatry and Biobehavioral SciencesUniversity of California, Los AngelesLos AngelesCaliforniaUSA
| | - Chiadi U. Onyike
- Division of Geriatric Psychiatry and NeuropsychiatryDepartment of Psychiatry and Behavioral SciencesJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Belen Pascual
- Stanley H. Appel Department of NeurologyHouston Methodist HospitalWeill Cornell MedicineHouston Methodist Neurological and Research InstituteHoustonTexasUSA
| | | | | | - Adam L. Boxer
- Department of NeurologyMemory and Aging CenterUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
| | - Howard J. Rosen
- Department of NeurologyMemory and Aging CenterUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
| | - Stephanie Cosentino
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain and Gertrude H. Sergievsky CenterDepartment of NeurologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Edward D. Huey
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain and Gertrude H. Sergievsky CenterDepartment of NeurologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
- Department of Psychiatry and New York Psychiatric InstituteColumbia University Medical CenterNew YorkUSA
| | - Megan S. Barker
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain and Gertrude H. Sergievsky CenterDepartment of NeurologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Jill S. Goldman
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain and Gertrude H. Sergievsky CenterDepartment of NeurologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
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10
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Measuring social cognition in frontotemporal lobar degeneration: a clinical approach. J Neurol 2021; 269:2227-2244. [PMID: 34797433 DOI: 10.1007/s00415-021-10889-9] [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: 08/18/2021] [Revised: 10/14/2021] [Accepted: 11/03/2021] [Indexed: 10/19/2022]
Abstract
Alterations in social cognition, a broad term indicating our ability to understand others and adapt our behavior accordingly, have been the focus of growing attention in the past years. Some neurological conditions, such as those belonging to the frontotemporal lobar degeneration (FTLD) spectrum, are associated to varying degrees with social cognition deficits, encompassing problems with theory of mind (ToM), empathy, perception of social stimuli, and social behavior. In this review, we outline a clinical framework for the evaluation of social cognition and discuss its role in the assessment of patients affected by a range of FTLD conditions.
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11
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Magno MA, Canu E, Filippi M, Agosta F. Social cognition in the FTLD spectrum: evidence from MRI. J Neurol 2021; 269:2245-2258. [PMID: 34797434 DOI: 10.1007/s00415-021-10892-0] [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: 08/18/2021] [Revised: 10/14/2021] [Accepted: 11/03/2021] [Indexed: 10/19/2022]
Abstract
Over the past few years, there has been great interest in social cognition, a wide term referring to the human ability of understanding others' emotions, thoughts, and intentions, to empathize with them and to behave accordingly. While there is no agreement on the classification of social cognitive processes, they can broadly be categorized as consisting of theory of mind, empathy, social perception, and social behavior. The study of social cognition and its relative deficits is increasingly assuming clinical relevance. However, the clinical and neuroanatomical correlates of social cognitive alterations in neurodegenerative conditions, such as those belonging to the frontotemporal lobar (FTLD) spectrum, are not fully established. In this review, we describe the current understanding of social cognition impairments in different FTLD conditions with respect to MRI.
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Affiliation(s)
- Maria Antonietta Magno
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
| | - Elisa Canu
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, 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
| | - 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.
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12
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Castelnovo V, Canu E, Magno MA, Basaia S, Riva N, Poletti B, Silani V, Filippi M, Agosta F. Impaired recognition of disgust in amyotrophic lateral sclerosis is related to basal ganglia involvement. NEUROIMAGE-CLINICAL 2021; 32:102803. [PMID: 34537684 PMCID: PMC8478135 DOI: 10.1016/j.nicl.2021.102803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 07/19/2021] [Accepted: 08/20/2021] [Indexed: 12/30/2022]
Abstract
Altered ability to correctly recognize disgust in
pure motor ALS patients. Potential role of the left pallidum in the altered
processing of disgust. Disgust as one of the first emotion that ALS
patients fail to recognize.
In the present study we investigated emotion recognition
in pure motor amyotrophic lateral sclerosis (ALS) patients and its relationship
with the integrity of basal ganglia, hippocampus and amygdala. Twenty ALS
patients without either cognitive or behavioural impairment, and 52 matched
healthy controls performed a neuropsychological assessment including the
Comprehensive Affect Testing System (CATS) investigating emotion recognition.
All participants underwent also a 3T brain MRI. Volumes of basal ganglia,
hippocampus and amygdala bilaterally were measured using FIRST in FSL.
Sociodemographic, cognitive and MRI data were compared between groups. In ALS
patients, correlations between CATS significant findings, brain volumes,
cognition, mood and behaviour were explored. ALS patients showed altered
performances at the CATS total score and, among the investigated emotions,
patients were significantly less able to recognize disgust compared with
controls. No brain volumetric differences were observed between groups. In ALS
patients, a lower performance in disgust recognition was related with a reduced
volume of the left pallidum and a lower performance on the Edinburgh Cognitive
and Behavioural ALS Screen. Cognitively/behaviourally unimpaired ALS patients
showed impaired disgust recognition, which was associated with pallidum volume.
The association with cognitive alterations may suggest impaired disgust
recognition as an early marker of cognitive decline.
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Affiliation(s)
- Veronica Castelnovo
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Elisa Canu
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria Antonietta Magno
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Silvia Basaia
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nilo Riva
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy; Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Barbara Poletti
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy; Department of Pathophysiology and Transplantation, "Dino Ferrari" Center, Università degli Studi di Milano, Milan, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 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
| | - Federica Agosta
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy; Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy.
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13
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Rusina R, Vandenberghe R, Bruffaerts R. Cognitive and Behavioral Manifestations in ALS: Beyond Motor System Involvement. Diagnostics (Basel) 2021; 11:diagnostics11040624. [PMID: 33808458 PMCID: PMC8065866 DOI: 10.3390/diagnostics11040624] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/23/2021] [Accepted: 03/28/2021] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) has long been considered to be a purely motor disorder. However, it has become apparent that many ALS patients develop cognitive and behavioral manifestations similar to frontotemporal dementia and the term amyotrophic lateral sclerosis-frontotemporal spectrum disorder (ALS-FTSD) is now used in these circumstances. This review is intended to be an overview of the cognitive and behavioral manifestations commonly encountered in ALS patients with the goal of improving case-oriented management in clinical practice. We introduce the principal ALS-FTSD subtypes and comment on their principal clinical manifestations, neuroimaging findings, neuropathological and genetic background, and summarize available therapeutic options. Diagnostic criteria for ALS-FTSD create distinct categories based on the type of neuropsychological manifestations, i.e., changes in behavior, impaired social cognition, executive dysfunction, and language or memory impairment. Cognitive impairment is found in up to 65%, while frank dementia affects about 15% of ALS patients. ALS motor and cognitive manifestations can worsen in parallel, becoming more pronounced when bulbar functions (affecting speech, swallowing, and salivation) are involved. Dementia can precede or develop after the appearance of motor symptoms. ALS-FTSD patients have a worse prognosis and shorter survival rates than patients with ALS or frontotemporal dementia alone. Important negative prognostic factors are behavioral and personality changes. From the clinician's perspective, there are five major distinguishable ALS-FTSD subtypes: ALS with cognitive impairment, ALS with behavioral impairment, ALS with combined cognitive and behavioral impairment, fully developed frontotemporal dementia in combination with ALS, and comorbid ALS and Alzheimer's disease. Although the most consistent ALS and ALS-FTSD pathology is a disturbance in transactive response DNA binding protein 43 kDa (TDP-43) metabolism, alterations in microtubule-associated tau protein metabolism have also been observed in ALS-FTSD. Early detection and careful monitoring of cognitive deficits in ALS are crucial for patient and caregiver support and enable personalized management of individual patient needs.
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Affiliation(s)
- Robert Rusina
- Department of Neurology, Third Faculty of Medicine, Charles University, and Thomayer University Hospital, 140 59 Prague, Czech Republic
- Correspondence: ; Tel.: +420-26108-2479
| | - Rik Vandenberghe
- Laboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute (LBI), KU, 3000 Leuven, Belgium; (R.V.); (R.B.)
- Department of Neurology, University Hospitals, 3000 Leuven, Belgium
| | - Rose Bruffaerts
- Laboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute (LBI), KU, 3000 Leuven, Belgium; (R.V.); (R.B.)
- Department of Neurology, University Hospitals, 3000 Leuven, Belgium
- Biomedical Research Institute, Hasselt University, 3590 Diepenbeek, Belgium
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