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Gomes V, Simón T, Lázaro M. "I don't know who you are": anomia for people's names in Alzheimer's disease. NEUROPSYCHOLOGY, DEVELOPMENT, AND COGNITION. SECTION B, AGING, NEUROPSYCHOLOGY AND COGNITION 2024; 31:956-986. [PMID: 38351719 DOI: 10.1080/13825585.2024.2315773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 01/05/2024] [Indexed: 07/18/2024]
Abstract
It is well known that difficulty in the retrieval of people's names is an early symptom of Alzheimer's Disease Dementia (ADD), but there is a controversy about the nature of this deficit. In this study, we analyzed whether the nature of the difficulty in retrieving proper names in ADD reflects pre-semantic, semantic, or post-semantic difficulties. To do so, 85 older adults, 35 with ADD and 50 cognitively healthy (CH), completed a task with famous faces involving: recognition, naming, semantic questions, and naming with phonological cues. The ADD group scored lower than the CH group in all tasks. Both groups showed a greater capacity for recognition than naming, but this difference was more pronounced in the ADD group. Additionally, the ADD group showed significantly fewer semantic errors than the CH group. Overall results suggest that the difficulties people with ADD have in naming reflect a degradation at semantic level.
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Affiliation(s)
- Vanessa Gomes
- Department of Experimental Psychology, Cognitive Processes and Speech Therapy, Complutense University of Madrid, Madrid, Spain
| | - Teresa Simón
- Department of Experimental Psychology, Cognitive Processes and Speech Therapy, Complutense University of Madrid, Madrid, Spain
| | - Miguel Lázaro
- Department of Experimental Psychology, Cognitive Processes and Speech Therapy, Complutense University of Madrid, Madrid, Spain
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Ding J, Yang Q, Drossinos N, Guo Q. Advances in semantic dementia: Neuropsychology, pathology & neuroimaging. Ageing Res Rev 2024; 99:102375. [PMID: 38866186 DOI: 10.1016/j.arr.2024.102375] [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: 11/16/2023] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
Semantic dementia is a kind of neurodegenerative disorder, characterized by prominent semantic impairments and anterior temporal lobe atrophy. Since 2010, more studies have devoted to this rare disorder, revealing that it is more complex than we think. Clinical advances include more specific findings of semantic impairments and other higher order cognitive deficits. Neuroimaging techniques can help revealing the different brain networks affected (both structurally and functionally) in this condition. Pathological and genetic studies have also found more complex situations of semantic dementia, which might explain the huge variance existing in semantic dementia. Moreover, the current diagnosis criteria mainly focus on semantic dementia's classical prototype. We further delineated the features of three subtypes of semantic dementia based on atrophy lateralization with three severity stages. In a broader background, as a part of the continuum of neurodegenerative disorders, semantic dementia is commonly compared with other resembling conditions. Therefore, we summarized the differential diagnosis between semantic dementia and them. Finally, we introduced the challenges and achievements of its diagnosis, treatment, care and cross cultural comparison. By providing a comprehensive picture of semantic dementia on different aspects of advances, we hope to deepen the understanding of semantic dementia and promote more inspirations on both clinical and theoretical studies about it.
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Affiliation(s)
- Junhua Ding
- Department of Gerontology, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Qing Yang
- Department of Rehabilitation, Hushan Hospital, Fudan University, Shanghai, China
| | - Niki Drossinos
- Division of Psychology, Communication and Human Neuroscience, University of Manchester, Manchester, UK
| | - Qihao Guo
- Department of Gerontology, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Macoir J, Landry M, Hudon C. Normative Data for the Famous People Fluency Test in the Adult French-Quebec Population and Validation Study in Mild Cognitive Impairment and Alzheimer's Disease. Arch Clin Neuropsychol 2024:acae053. [PMID: 39004918 DOI: 10.1093/arclin/acae053] [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: 05/13/2024] [Revised: 06/17/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024] Open
Abstract
OBJECTIVE The production of words in verbal fluency tests relies heavily on executive functions and linguistic abilities. New tests such as the famous people fluency test can also be useful in clinical practice and research. This test, in which participants are asked to name so many famous people, has the potential to distinguish healthy individuals from participants with neurological disorders such as mild cognitive impairment or Alzheimer's disease. METHOD The aim of this study was to determine the psychometric validity of the test (Study 1) and to provide normative data in the adult population of French Quebec for the famous people fluency test (Study 2). RESULTS The results of the normative study, derived from a sample of 378 healthy individuals between the ages of 50 and 92, showed that age and educational level significantly influence performance on the test. Therefore, percentile ranks were calculated for performance on the famous people fluency test, stratified for these two variables. The results of Study 2 showed that the test differentiated the performance of healthy participants from the performance of participants with mild cognitive impairment or Alzheimer's disease. The results also showed that the famous people fluency test has adequate convergent validity, established with a semantic fluency test, and that the results showed good stability over time (test-retest validity). CONCLUSION Norms and psychometric data for the famous people fluency test will improve the ability of clinicians and researchers to better recognize executive and language impairments associated with pathological conditions.
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Affiliation(s)
- Joël Macoir
- Faculté de médecine, École des Sciences de la réadaptation, Université Laval, Québec QC, Canada
- Centre de recherche CERVO - Brain Research Centre, Québec QC, Canada
| | - Mariane Landry
- Centre de recherche CERVO - Brain Research Centre, Québec QC, Canada
- Faculté des sciences sociales, École de psychologie, Université Laval, Québec QC, Canada
- Centre de recherche VITAM, Québec QC, Canada
| | - Carol Hudon
- Centre de recherche CERVO - Brain Research Centre, Québec QC, Canada
- Faculté des sciences sociales, École de psychologie, Université Laval, Québec QC, Canada
- Centre de recherche VITAM, Québec QC, Canada
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Yadollahikhales G, Mandelli ML, Ezzes Z, Pillai J, Ratnasiri B, Baquirin DP, Miller Z, de Leon J, Tee BL, Seeley W, Rosen H, Miller B, Kramer J, Sturm V, Gorno-Tempini ML, Montembeault M. Perceptual and semantic deficits in face recognition in semantic dementia. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.07.10.24310157. [PMID: 39040182 PMCID: PMC11261910 DOI: 10.1101/2024.07.10.24310157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
State of the art Semantic dementia (SD) patients including semantic variant primary progressive aphasia (svPPA) and semantic behavioral variant frontotemporal dementia (sbvFTD) patients show semantic difficulties identifying faces and known people related to right anterior temporal lobe (ATL) atrophy. However, it remains unclear whether they also have perceptual deficits in face recognition. Methodology We selected 74 SD patients (54 with svPPA and predominant left ATL atrophy and 20 with sbvFTD and predominant right ATL atrophy) and 36 cognitively healthy controls (HC) from UCSF Memory and Aging Center. They underwent a perceptual face processing test (Benton facial recognition test-short version; BFRT-S), and semantic face processing tests (UCSF Famous people battery - Recognition, Naming, Semantic associations - pictures and words subtests), as well as structural magnetic resonance imaging (MRI). Neural correlates with the task's performance were conducted with a Voxel-based morphometry approach using CAT12. Results svPPA and sbvFTD patients were impaired on all semantic face processing tests, with sbvFTD patients performing significantly lower on the famous faces' recognition task in comparison to svPPA, and svPPA performing significantly lower on the naming task in comparison to sbvFTD. These tasks predominantly correlated with gray matter (GM) volumes in the right and left ATL, respectively. Compared to HC, both svPPA and sbvFTD patients showed preserved performance on the perceptual face processing test (BFRT-S), and performance on the BFRT-S negatively correlated with GM volume in the right posterior superior temporal sulcus (pSTS). Conclusion Our results suggest that early in the disease, with the atrophy mostly restricted to the anterior temporal regions, SD patients do not present with perceptual deficits. However, more severe SD cases with atrophy in right posterior temporal regions might show lower performance on face perception tests, in addition to the semantic face processing deficits. Early sparing of face perceptual deficits in SD patients, regardless of hemispheric lateralization, furthers our understanding of clinical phenomenology and therapeutical approaches of this complex disease.
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Marier A, Dadar M, Bouhali F, Montembeault M. Irregular word reading as a marker of semantic decline in Alzheimer's disease: implications for premorbid intellectual ability measurement. Alzheimers Res Ther 2024; 16:96. [PMID: 38698406 PMCID: PMC11064305 DOI: 10.1186/s13195-024-01438-3] [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: 09/24/2023] [Accepted: 03/25/2024] [Indexed: 05/05/2024]
Abstract
BACKGROUND Irregular word reading has been used to estimate premorbid intelligence in Alzheimer's disease (AD) dementia. However, reading models highlight the core influence of semantic abilities on irregular word reading, which shows early decline in AD. The primary objective of this study is to ascertain whether irregular word reading serves as an indicator of cognitive and semantic decline in AD, potentially discouraging its use as a marker for premorbid intellectual abilities. METHOD Six hundred eighty-one healthy controls (HC), 104 subjective cognitive decline, 290 early and 589 late mild cognitive impairment (EMCI, LMCI) and 348 AD participants from the Alzheimer's Disease Neuroimaging Initiative were included. Irregular word reading was assessed with the American National Adult Reading Test (AmNART). Multiple linear regressions were conducted predicting AmNART score using diagnostic category, general cognitive impairment and semantic tests. A generalized logistic mixed-effects model predicted correct reading using extracted psycholinguistic characteristics of each AmNART words. Deformation-based morphometry was used to assess the relationship between AmNART scores and voxel-wise brain volumes, as well as with the volume of a region of interest placed in the left anterior temporal lobe (ATL), a region implicated in semantic memory. RESULTS EMCI, LMCI and AD patients made significantly more errors in reading irregular words compared to HC, and AD patients made more errors than all other groups. Across the AD continuum, as well as within each diagnostic group, irregular word reading was significantly correlated to measures of general cognitive impairment / dementia severity. Neuropsychological tests of lexicosemantics were moderately correlated to irregular word reading whilst executive functioning and episodic memory were respectively weakly and not correlated. Age of acquisition, a primarily semantic variable, had a strong effect on irregular word reading accuracy whilst none of the phonological variables significantly contributed. Neuroimaging analyses pointed to bilateral hippocampal and left ATL volume loss as the main contributors to decreased irregular word reading performances. CONCLUSIONS While the AmNART may be appropriate to measure premorbid intellectual abilities in cognitively unimpaired individuals, our results suggest that it captures current semantic decline in MCI and AD patients and may therefore underestimate premorbid intelligence. On the other hand, irregular word reading tests might be clinically useful to detect semantic impairments in individuals on the AD continuum.
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Affiliation(s)
- Anna Marier
- Douglas Research Centre & Department of Psychiatry, McGill University, 6875 Boulevard LaSalle, Montréal, QC, H4H 1R3, Canada
- Department of Psychology, Université de Montréal, Succursale Centre-Ville, Montréal, QC, C.P. 6128, H3C 3J7, Canada
| | - Mahsa Dadar
- Douglas Research Centre & Department of Psychiatry, McGill University, 6875 Boulevard LaSalle, Montréal, QC, H4H 1R3, Canada
| | | | - Maxime Montembeault
- Douglas Research Centre & Department of Psychiatry, McGill University, 6875 Boulevard LaSalle, Montréal, QC, H4H 1R3, Canada.
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Macoir J, Tremblay P, Beaudoin S, Parent M, Hudon C. Impaired lexical access for unique entities in individuals with subjective cognitive decline. APPLIED NEUROPSYCHOLOGY. ADULT 2024:1-11. [PMID: 38648449 DOI: 10.1080/23279095.2024.2344636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Subjective cognitive decline (SCD) may serve as an early indicator of Alzheimer's disease (AD). However, accurately quantifying cognitive impairment in SCD is challenging, mainly because existing assessment tools lack sensitivity. This study examined how tasks specifically designed to assess knowledge of famous people, could potentially aid in identifying cognitive impairment in SCD. A total of 60 adults with SCD and 60 healthy controls (HCs) aged 50 to 82 years performed a famous people verbal fluency task and a famous people naming task. In the famous people fluency task, the results showed that the individuals with SCD produced significantly fewer famous names in the total time allowed than the HCs, and this difference was also found in the first and the second time interval. In the famous people naming task, the performance of the SCD group was significantly lower than that of the HC group only in the more recent period of fame. Overall, these results suggest that retrieving the names of famous people was more difficult for people with SCD than for people without cognitive complaints. They also suggest that famous people verbal fluency and naming tasks could be useful in detecting cognitive decline at the preclinical stage of AD.
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Affiliation(s)
- Joël Macoir
- Faculté de Médecine, École des Sciences de la Réadaptation, Université Laval, Québec, QC, Canada
- Centre de Recherche CERVO-Brain Research Centre, Québec, QC, Canada
| | - Pascale Tremblay
- Faculté de Médecine, École des Sciences de la Réadaptation, Université Laval, Québec, QC, Canada
- Centre de Recherche CERVO-Brain Research Centre, Québec, QC, Canada
| | - Stéphanie Beaudoin
- Faculté de Médecine, École des Sciences de la Réadaptation, Université Laval, Québec, QC, Canada
| | - Mathias Parent
- Faculté de Médecine, École des Sciences de la Réadaptation, Université Laval, Québec, QC, Canada
| | - Carol Hudon
- Centre de Recherche CERVO-Brain Research Centre, Québec, QC, Canada
- Faculté des Sciences Sociales, École de Psychologie, Université Laval, Québec, QC, Canada
- Centre de Recherche VITAM, Québec, QC, Canada
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Xiao X, Dong Z, Yu M, Ding J, Zhang M, Cruz S, Han Z, Chen Y. White matter network underlying semantic processing: evidence from stroke patients. Brain Commun 2024; 6:fcae058. [PMID: 38444912 PMCID: PMC10914445 DOI: 10.1093/braincomms/fcae058] [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: 05/21/2023] [Revised: 10/27/2023] [Accepted: 02/20/2024] [Indexed: 03/07/2024] Open
Abstract
The hub-and-spoke theory of semantic representation fractionates the neural underpinning of semantic knowledge into two essential components: the sensorimotor modality-specific regions and a crucially important semantic hub region. Our previous study in patients with semantic dementia has found that the hub region is located in the left fusiform gyrus. However, because this region is located within the brain damage in patients with semantic dementia, it is not clear whether the semantic deficit is caused by structural damage to the hub region itself or by its disconnection from other brain regions. Stroke patients do not have any damage to the left fusiform gyrus, but exhibit amodal and modality-specific deficits in semantic processing. Therefore, in this study, we validated the semantic hub region from a brain network perspective in 79 stroke patients and explored the white matter connections associated with it. First, we collected data of diffusion-weighted imaging and behavioural performance on general semantic tasks and modality-specific semantic tasks (assessing object knowledge on form, colour, motion, sound, manipulation and function). We then used correlation and regression analyses to examine the association between the nodal degree values of brain regions in the whole-brain structural network and general semantic performance in the stroke patients. The results revealed that the connectivity of the left fusiform gyrus significantly predicted general semantic performance, indicating that this region is the semantic hub. To identify the semantic-relevant connections of the semantic hub, we then correlated the white matter integrity values of each tract connected to the left fusiform gyrus separately with performance on general and modality-specific semantic processing. We found that the hub region accomplished general semantic processing through white matter connections with the left superior temporal pole, middle temporal gyrus, inferior temporal gyrus and hippocampus. The connectivity between the hub region and the left hippocampus, superior temporal pole, middle temporal gyrus, inferior temporal gyrus and parahippocampal gyrus was differentially involved in object form, colour, motion, sound, manipulation and function processing. After statistically removing the effects of potential confounding variables (i.e. whole-brain lesion volume, lesion volume of regions of interest and performance on non-semantic control tasks), the observed effects remained significant. Together, our findings support the role of the left fusiform gyrus as a semantic hub region in stroke patients and reveal its crucial connectivity in the network. This study provides new insights and evidence for the neuroanatomical organization of semantic memory in the human brain.
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Affiliation(s)
- Xiangyue Xiao
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Zhicai Dong
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Mingyan Yu
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Junhua Ding
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
- Department of Psychology, University of Edinburgh, Edinburgh EH8 9YL, UK
| | - Maolin Zhang
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Sara Cruz
- The Psychology for Development Research Center, Lusiada University Porto, Porto 4100-348, Portugal
| | - Zaizhu Han
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Yan Chen
- School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou 311121, China
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
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Marier A, Dadar M, Bouhali F, Montembeault M. Irregular word reading as a marker of cognitive and semantic decline in Alzheimer's disease rather than an estimate of premorbid intellectual abilities. RESEARCH SQUARE 2023:rs.3.rs-3381469. [PMID: 37841870 PMCID: PMC10571618 DOI: 10.21203/rs.3.rs-3381469/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Background Irregular word reading has been used to estimate premorbid intelligence in Alzheimer's disease (AD) dementia. However, reading models highlight the core influence of semantic abilities on irregular word reading, which shows early decline in AD. The general aim of this study is to determine whether irregular word reading is a valid estimate of premorbid intelligence, or a marker of cognitive and semantic decline in AD. Method 681 healthy controls (HC), 104 subjective cognitive decline, 290 early and 589 late mild cognitive impairment (EMCI, LMCI) and 348 AD participants from the Alzheimer's Disease Neuroimaging Initiative were included. Irregular word reading was assessed with the American National Adult Reading Test (AmNART). Multiple linear regressions were conducted predicting AmNART score using diagnostic category, general cognitive impairment and semantic tests. A generalized logistic mixed-effects model predicted correct reading using extracted psycholinguistic characteristics of each AmNART words. Deformation-based morphometry was used to assess the relationship between AmNART scores and voxel-wise brain volumes, as well as with the volume of a region of interest placed in the left anterior temporal lobe (ATL). Results EMCI, LMCI and AD patients made significantly more errors in reading irregular words compared to HC, and AD patients made more errors than all other groups. Across the AD continuum, as well as within each diagnostic group, irregular word reading was significantly correlated to measures of general cognitive impairment / dementia severity. Neuropsychological tests of lexicosemantics were moderately correlated to irregular word reading whilst executive functioning and episodic memory were respectively weakly and not correlated. Age of acquisition, a primarily semantic variable, had a strong effect on irregular word reading accuracy whilst none of the phonological variables significantly contributed. Neuroimaging analyses pointed to bilateral hippocampal and left ATL volume loss as the main contributors to decreased irregular word reading performances. Conclusions Irregular word reading performances decline throughout the AD continuum, and therefore, premorbid intelligence estimates based on the AmNART should not be considered accurate in MCI or AD. Results are consistent with the theory of irregular word reading impairments as an indicator of disease severity and semantic decline.
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Affiliation(s)
- Anna Marier
- Department of Psychology, Université de Montréal, C.P. 6128, succursale Centre-Ville, Montréal, QC, Canada, H3C 3J7
| | - Mahsa Dadar
- Douglas Research Centre & Department of Psychiatry, McGill University, 6875 Boulevard LaSalle, Montréal, QC, Canada, H4H 1R3
| | | | - Maxime Montembeault
- Douglas Research Centre & Department of Psychiatry, McGill University, 6875 Boulevard LaSalle, Montréal, QC, Canada, H4H 1R3
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De Marco M, Bocchetta M, Venneri A. Item-Level Scores on the Boston Naming Test as an Independent Predictor of Perirhinal Volume in Individuals with Mild Cognitive Impairment. Brain Sci 2023; 13:806. [PMID: 37239278 PMCID: PMC10216160 DOI: 10.3390/brainsci13050806] [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: 04/08/2023] [Revised: 04/17/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
We explored the methodological value of an item-level scoring procedure applied to the Boston Naming Test (BNT), and the extent to which this scoring approach predicts grey matter (GM) variability in regions that sustain semantic memory. Twenty-seven BNT items administered as part of the Alzheimer's Disease Neuroimaging Initiative were scored according to their "sensorimotor interaction" (SMI) value. Quantitative scores (i.e., the count of correctly named items) and qualitative scores (i.e., the average of SMI scores for correctly named items) were used as independent predictors of neuroanatomical GM maps in two sub-cohorts of 197 healthy adults and 350 mild cognitive impairment (MCI) participants. Quantitative scores predicted clusters of temporal and mediotemporal GM in both sub-cohorts. After accounting for quantitative scores, the qualitative scores predicted mediotemporal GM clusters in the MCI sub-cohort; clusters extended to the anterior parahippocampal gyrus and encompassed the perirhinal cortex. This was confirmed by a significant yet modest association between qualitative scores and region-of-interest-informed perirhinal volumes extracted post hoc. Item-level scoring of BNT performance provides complementary information to standard quantitative scores. The concurrent use of quantitative and qualitative scores may help profile lexical-semantic access more precisely, and might help detect changes in semantic memory that are typical of early-stage Alzheimer's disease.
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Affiliation(s)
- Matteo De Marco
- Centre for Cognitive and Clinical Neuroscience, Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London UB8 3PH, UK; (M.D.M.); (M.B.)
| | - Martina Bocchetta
- Centre for Cognitive and Clinical Neuroscience, Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London UB8 3PH, UK; (M.D.M.); (M.B.)
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, London WC1E 6BT, UK
| | - Annalena Venneri
- Centre for Cognitive and Clinical Neuroscience, Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London UB8 3PH, UK; (M.D.M.); (M.B.)
- Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy
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Chasles MJ, Joubert S, Cole J, Delage E, Et Rouleau I. Learning and vulnerability to phonological and semantic interference in normal aging: an experimental study. Memory 2023; 31:297-314. [PMID: 36475538 DOI: 10.1080/09658211.2022.2154366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
ABSTRACTThis study compares semantic and phonological interference vulnerability across the full range of learning processes. Method: 43 controls aged 61-88 underwent a neuropsychological examination, French adaptation of the LASSI-L, and an experimental phonological test, the TIP-A. Paired sample t-tests, factorial ANOVA and hierarchical regressions were conducted, psychometric properties were calculated. Results: TIP-A efficiently generated phonological interference between concurrent word lists and was associated with short-term memory, unlike LASSI-L. On LASSI-L, proactive interference was higher than retroactive interference; the opposite pattern was found on TIP-A. Memory performance was better explained by age in the semantic than in the phonological task. Age was not associated with interference vulnerability. Intrusions and false recognition were associated with cognitive functioning regardless of age, particularly in the semantic context. Conclusion: To our knowledge, this is the first study to assess phonological and semantic interference using homologous concurrent word list tasks, and not a working memory build-up or DRM paradigm. The pattern obtained illustrates the weak initial memory trace in a phonological context and results are discussed according to depth-of-processing and dual-process theories. Similar paradigms could be studied among various pathologies for a better understanding of generalised interference vulnerability vs. specific semantic or phonological impairment.
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Affiliation(s)
- M-J Chasles
- Psychology department, Université du Québec à Montréal (UQAM), Montréal, Canada.,Centre de recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, Canada
| | - S Joubert
- Centre de recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, Canada.,Psychology Department, Université de Montréal, Montréal, Canada
| | - J Cole
- Psychology department, Université du Québec à Montréal (UQAM), Montréal, Canada.,Centre de recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, Canada
| | - E Delage
- Centre de recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, Canada.,Psychology Department, Université de Montréal, Montréal, Canada
| | - I Et Rouleau
- Psychology department, Université du Québec à Montréal (UQAM), Montréal, Canada.,Centre Hospitalier de l'Université de Montréal (CHUM) research center, Montréal, Canada
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Li D, Yu YY, Hu N, Zhang M, Sun FL, Liu L, Fan LM, Ruan SS, Wang F, Rosa-Neto P. Composite Indices of the Color-Picture Version of Boston Naming Test Have Better Discriminatory Power: Reliability and Validity in a Chinese Sample with Diverse Neurodegenerative Diseases. J Alzheimers Dis 2023; 94:393-404. [PMID: 37248898 DOI: 10.3233/jad-221227] [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: 05/31/2023]
Abstract
BACKGROUND The Boston Naming Test (BNT) is the most widely used measure to assess anomia. However, it has been criticized for failing to differentiate the underlying cognitive process of anomia. OBJECTIVE We validated the color-picture version of BNT (CP-BNT) in a sample with diverse neurodegenerative dementia diseases (NDDs). We also verified the differential ability of the composite indices of CP-BNT across NDDs groups. METHODS The present study included Alzheimer's disease (n = 132), semantic variant primary progressive aphasia (svPPA, n = 53), non-svPPA (n = 33), posterior cortical atrophy (PCA, n = 35), and normal controls (n = 110). We evaluated psychometric properties of CP-BNT for the spontaneous naming (SN), the percentage of correct responses on semantic cuing and word recognition cuing (% SC, % WR). Receiver operating characteristic analysis was used to examine the discriminatory power of SN alone and the composite indices (SN, % SC, and % WR). RESULTS The CP-BNT had sufficient internal consistency, good convergent, divergent validity, and criterion validity. Different indices of CP-BNT demonstrated distinct cognitive underpinnings. Category fluency was the strongest predictor of SN (β= 0.46, p < 0.001). Auditory comprehension tests highly associated with % WR (Sentence comprehension: β= 0.22, p = 0.001; Word comprehension: β= 0.20, p = 0.001), whereas a lower visuospatial score predicted % SC (β= -0.2, p = 0.001). Composite indices had better predictability than the SN alone when differentiating between NDDs, especially for PCA versus non-svPPA (area under the curve increased from 63.9% to 81.2%). CONCLUSION The CP-BNT is a highly linguistically relevant test with sufficient reliability and validity. Composite indices could provide more differential information beyond SN and should be used in clinical practice.
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Affiliation(s)
- Dan Li
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, P.R. China
| | - Yue-Yi Yu
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, P.R. China
| | - Nan Hu
- Discipline of Paediatrics & Child Health, School of Clinical Medicine, UNSW Medicine & Health, UNSW Sydney, Australia
| | - Min Zhang
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, P.R. China
| | - Fang-Ling Sun
- Department of Laboratory Animal Center, Xuanwu Hospital, Capital Medical University, Beijing Municipal Geriatric Medical Research Center, Beijing, P.R. China
| | - Li Liu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, P.R. China
| | - Li-Mei Fan
- Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, P.R. China
| | - Shi-Shuang Ruan
- Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, P.R. China
| | - Fen Wang
- Innovation Center for Neurological Disorders, Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, P.R. China
| | - Pedro Rosa-Neto
- Translational Neuroimaging Laboratory, The McGill University Research Centre for Studies in Aging, Douglas Hospital, McGill University, Montreal, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, Canada
- Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
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12
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Kobayashi R, Hayashi H, Kawakatsu S, Shibuya Y, Morioka D, Ohba M, Yoshioka M, Sakamoto K, Kanoto M, Otani K. Comparing Medial Temporal Atrophy Between Early-Onset Semantic Dementia and Early-Onset Alzheimer's Disease Using Voxel-Based Morphometry: A Multicenter MRI Study. Curr Alzheimer Res 2022; 19:503-510. [PMID: 35996258 DOI: 10.2174/1567205019666220820145429] [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: 04/11/2022] [Revised: 06/06/2022] [Accepted: 06/10/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND Early-onset Semantic dementia (EOSD) and early-onset Alzheimer's disease (EOAD) are often difficult to clinically differentiate in the early stages of the diseases because of the overlaps of clinical symptoms such as language symptoms. We compared the degree of atrophy in medial temporal structures between the two types of dementia using the voxel-based specific regional analysis system for Alzheimer's disease (VSRAD). METHODS The participants included 29 (age: 61.7±4.5 years) and 39 (age: 60.2±4.9 years) patients with EOSD and EOAD, respectively. The degree of atrophy in medial temporal structures was quantified using the VSRAD for magnetic resonance imaging data. Receiver operating characteristic (ROC) analysis was performed to distinguish patients with EOSD and EOAD using the mean Z score (Z-score) in bilateral medial temporal structures and the absolute value (laterality score) of the laterality of Z-score (| right-left |) for indicating the degree of asymmetrical atrophy in medial temporal structures. RESULTS The EOSD group had significantly higher Z and laterality scores than the EOAD group (Zscores: mean ± standard deviation: 3.74±1.05 vs. 1.56±0.81, respectively; P<0.001; laterality score: mean ± standard deviation: 2.35±1.23 vs. 0.68±0.51, respectively; P<0.001). In ROC analysis, the sensitivity and specificity to differentiate EOSD from EOAD by a Z-score of 2.29 were 97% and 85%, respectively and by the laterality score of 1.05 were 93% and 85%, respectively. CONCLUSION EOSD leads to more severe and asymmetrical atrophy in medial temporal structures than EOAD. The VSRAD may be useful to distinguish between these dementias that have several clinically similar symptoms.
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Affiliation(s)
- Ryota Kobayashi
- Department of Psychiatry, Yamagata University School of Medicine, Iidanishi 2-2-2, Yamagata 990-9585, Japan
| | - Hiroshi Hayashi
- Department of Occupational Therapy, Fukushima Medical University School of Health Sciences, Sakaemachi 10-6, Fukushima 960-8516, Japan
| | - Shinobu Kawakatsu
- Department of Neuropsychiatry, Aizu Medical Center, Fukushima Medical University, Kawahigashi 21-2, Aizuwakamatsu 969-3492, Japan
| | - Yuzuru Shibuya
- Department of Psychiatry, Nihonkai General Hospital, Akihocho 30, Sakata 998-8501, Japan
| | - Daichi Morioka
- Department of Psychiatry, Yamagata University School of Medicine, Iidanishi 2-2-2, Yamagata 990-9585, Japan
| | - Makoto Ohba
- Department of Radiology, Yamagata University Hospital, Iidanishi 2-2-2, Yamagata 990- 9585, Japan
| | - Masanori Yoshioka
- Department of Radiology, Yamagata University Hospital, Iidanishi 2-2-2, Yamagata 990- 9585, Japan
| | - Kazutaka Sakamoto
- Department of Psychiatry, Yamagata University School of Medicine, Iidanishi 2-2-2, Yamagata 990-9585, Japan.,Department of Neuropsychiatry, Aizu Medical Center, Fukushima Medical University, Kawahigashi 21-2, Aizuwakamatsu 969-3492, Japan
| | - Masafumi Kanoto
- Department of Radiology, Division of Diagnostic Radiology, Yamagata University School of Medicine, Iidanishi 2-2-2, Yamagata 990-9585, Japan
| | - Koichi Otani
- Department of Psychiatry, Yamagata University School of Medicine, Iidanishi 2-2-2, Yamagata 990-9585, Japan
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13
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Montembeault M, Stijelja S, Brambati SM. Self-reported word-finding complaints are associated with cerebrospinal fluid amyloid beta and atrophy in cognitively normal older adults. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2022; 14:e12274. [PMID: 35155731 PMCID: PMC8828990 DOI: 10.1002/dad2.12274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Self-reported word-finding difficulties are among the most frequent complaints in cognitively normal (CN) older adults. However, the clinical significance is still debated. METHODS We selected 239 CN from the Alzheimer's Disease Neuroimaging Initiative database who had completed the Everyday Cognition (ECog) questionnaire, as well as a lumbar puncture for amyloid beta (Aβ) and magnetic resonance imaging. RESULTS Word-finding complaints, with a few other memory items, were significantly more severe compared to all other cognitive complaints. Ecog-Lang1 (Forgetting names of objects) severity significantly predicted Aβ levels in CN, even when controlling for general cognitive complaint, demographic, and psychological variables. Individuals with high Ecog-Lang1 complaints showed atrophy in the left fusiform gyrus and the left rolandic operculum compared to CN with low complaints. DISCUSSION Overall, our results support the fact that word-finding complaints should be taken seriously. They have the potential to identify CN at risk of AD and support the need to include other cognitive domains in the investigation of subjective cognitive decline.
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Affiliation(s)
- Maxime Montembeault
- Department of NeurologyUniversity of California San FranciscoMemory & Aging CenterSan FranciscoCaliforniaUSA
- Département de psychologieUniversité de Montréal, Pavillon Marie‐Victorinsuccursale Centre‐villeMontréalQuebecCanada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM)MontréalQuebecCanada
| | - Stefan Stijelja
- Département de psychologieUniversité de Montréal, Pavillon Marie‐Victorinsuccursale Centre‐villeMontréalQuebecCanada
| | - Simona M. Brambati
- Département de psychologieUniversité de Montréal, Pavillon Marie‐Victorinsuccursale Centre‐villeMontréalQuebecCanada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM)MontréalQuebecCanada
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14
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Macoir J, Tremblay MP, Wilson MA, Laforce R, Hudon C. The Importance of Being Familiar: The Role of Semantic Knowledge in the Activation of Emotions and Factual Knowledge from Music in the Semantic Variant of Primary Progressive Aphasia. J Alzheimers Dis 2021; 85:115-128. [PMID: 34776446 DOI: 10.3233/jad-215083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The role of semantic knowledge in emotion recognition remains poorly understood. The semantic variant of primary progressive aphasia (svPPA) is a degenerative disorder characterized by progressive loss of semantic knowledge, while other cognitive abilities remain spared, at least in the early stages of the disease. The syndrome is therefore a reliable clinical model of semantic impairment allowing for testing the propositions made in theoretical models of emotion recognition. OBJECTIVE The main goal of this study was to investigate the role of semantic memory in the recognition of basic emotions conveyed by music in individuals with svPPA. METHODS The performance of 9 individuals with svPPA was compared to that of 32 control participants in tasks designed to investigate the ability: a) to differentiate between familiar and non-familiar musical excerpts, b) to associate semantic concepts to musical excerpts, and c) to recognize basic emotions conveyed by music. RESULTS Results revealed that individuals with svPPA showed preserved abilities to recognize familiar musical excerpts but impaired performance on the two other tasks. Moreover, recognition of basic emotions and association of musical excerpts with semantic concepts was significantly better for familiar than non-familiar musical excerpts in participants with svPPA. CONCLUSION Results of this study have important implications for theoretical models of emotion recognition and music processing. They suggest that impairment of semantic memory in svPPA affects both the activation of emotions and factual knowledge from music and that this impairment is modulated by familiarity with musical tunes.
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Affiliation(s)
- Joël Macoir
- Département de Réadaptation, Faculté de Médecine, Université Laval, Québec, QC, Canada.,Centre de recherche CERVO - Brain Research Centre, Québec, QC, Canada
| | - Marie-Pier Tremblay
- Centre de recherche CERVO - Brain Research Centre, Québec, QC, Canada.,École de Psychologie, Université Laval, Québec, QC, Canada
| | - Maximiliano A Wilson
- Département de Réadaptation, Faculté de Médecine, Université Laval, Québec, QC, Canada.,Centre Interdisciplinaire de Recherche en Réadaptation et Intégration Sociale (CIRRIS), Québec, QC, Canada
| | - Robert Laforce
- Clinique Interdisciplinaire de Mémoire (CIME) du CHU de Québec, Département des sciences neurologiques, Québec, QC, Canada.,Département de Médecine, Faculté de Médecine, Université Laval, Québec, QC, Canada.,Research Chair on Primary Progressive Aphasia - Fondation Famille Lemaire, Québec, QC, Canada
| | - Carol Hudon
- Centre de recherche CERVO - Brain Research Centre, Québec, QC, Canada.,École de Psychologie, Université Laval, Québec, QC, Canada
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15
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Staffaroni AM, Weintraub S, Rascovsky K, Rankin KP, Taylor J, Fields JA, Casaletto KB, Hillis AE, Lukic S, Gorno‐Tempini ML, Heuer H, Teylan MA, Kukull WA, Miller BL, Boeve BF, Rosen HJ, Boxer AL, Kramer JH. Uniform data set language measures for bvFTD and PPA diagnosis and monitoring. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2021; 13:e12148. [PMID: 33665340 PMCID: PMC7896637 DOI: 10.1002/dad2.12148] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/23/2020] [Accepted: 12/02/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The Frontotemporal Lobar Degeneration Module (FTLD-MOD) includes a neuropsychological battery designed to assess the clinical features of FTLD, although much is unknown about its utility. We investigated FTLD-MOD and Uniform Data Set 3.0 (UDS) language tests for differential diagnosis and disease monitoring. METHODS Linear regressions compared baseline performances in 1655 National Alzheimer's Coordinating Center participants (behavioral variant frontotemporal dementia (bvFTD, n = 612), semantic variant primary progressive aphasia (svPPA, n = 168), non-fluent/agrammatic variant PPA (nfvPPA, n = 168), logopenic variant PPA (lvPPA, n = 109), and controls (n = 581)). Sample sizes to detect treatment effects were estimated using longitudinal data. RESULTS Among PPAs, the FTLD-MOD language tasks and UDS Multilingual Naming Test accurately discriminated svPPA. Number Span Forward best discriminated lvPPA; Phonemic:Semantic Fluency ratio was excellent for nfvPPA classification. UDS fluency and naming measures required the smallest sample size to detect meaningful change. DISCUSSION The FTLD-MOD and UDS differentiated among PPA subtypes. UDS 3.0 measures performed best for longitudinal monitoring.
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Affiliation(s)
- Adam M. Staffaroni
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Sandra Weintraub
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease and Department of Psychiatry and Behavioral SciencesFeinberg School of MedicineDepartment of NeurologyNorthwestern UniversityChicagoIllinoisUSA
| | - Katya Rascovsky
- Penn Frontotemporal Degeneration CenterDepartment of NeurologyPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Katherine P. Rankin
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Jack Taylor
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Julie A. Fields
- Department of Psychiatry and PsychologyMayo ClinicDivision of Neurocognitive DisordersRochesterMinnesotaUSA
| | - Kaitlin B. Casaletto
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Argye E. Hillis
- Department of NeurologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Sladjana Lukic
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Maria Luisa Gorno‐Tempini
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Hilary Heuer
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Merilee A. Teylan
- National Alzheimer's Coordinating CenterDepartment of EpidemiologyUniversity of WashingtonSeattleWashingtonUSA
| | - Walter A. Kukull
- National Alzheimer's Coordinating CenterDepartment of EpidemiologyUniversity of WashingtonSeattleWashingtonUSA
| | - Bruce L. Miller
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Bradley F. Boeve
- Department of NeurologyCollege of MedicineMayo ClinicRochesterMinnesotaUSA
| | - Howard J. Rosen
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Adam L. Boxer
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
| | - Joel H. Kramer
- Department of NeurologyMemory and Aging CenterWeill Institute for NeurosciencesUniversity of California at San Francisco (UCSF)San FranciscoCaliforniaUSA
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16
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Macoir J, Pilote-Paradis S, Lacoste L, Proulx M, Auclair-Ouellet N. Of logos and men: semantic memory impairment for unique entities in a case of semantic variant of primary progressive aphasia. Neurocase 2020; 26:188-196. [PMID: 32615858 DOI: 10.1080/13554794.2020.1772311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In this study, an individual (NG) with the semantic varient of primary progressive aphasis (svPPA) was assessed with tasks designed to investigate the recognition and activation of semantic knowledge about unique entities. NG had significant difficulties in the recognition of brand names and famous names but was largely unimpaired in the recognition of logos and famous faces. However, she was impaired in tasks requiring the activation of semantic representations of logos, brand names, famous faces, and famous names. These results suggest that the recognition of unique entities results from the interaction of perceptual and conceptual processes and, that the ability to activate semantic information about these entities can be affected in svPPA.
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Affiliation(s)
- J Macoir
- Faculté de Médecine, Département de Réadaptation, Université Laval , Québec, Canada.,Centre De Recherche CERVO - Brain Research Centre , Québec, Canada
| | - S Pilote-Paradis
- Faculté de Médecine, Département de Réadaptation, Université Laval , Québec, Canada
| | - L Lacoste
- Faculté de Médecine, Département de Réadaptation, Université Laval , Québec, Canada
| | - M Proulx
- Faculté de Médecine, Département de Réadaptation, Université Laval , Québec, Canada
| | - N Auclair-Ouellet
- School of Communication Sciences and Disorders, Faculty of Medicine, McGill University , Montreal, Canada.,Language and Music, Centre for Research on Brain , Montreal, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal , Montreal, Canada
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17
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Chen Y, Huang L, Chen K, Ding J, Zhang Y, Yang Q, Lv Y, Han Z, Guo Q. White matter basis for the hub-and-spoke semantic representation: evidence from semantic dementia. Brain 2020; 143:1206-1219. [PMID: 32155237 PMCID: PMC7191302 DOI: 10.1093/brain/awaa057] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/04/2020] [Accepted: 01/20/2020] [Indexed: 12/28/2022] Open
Abstract
The hub-and-spoke semantic representation theory posits that semantic knowledge is processed in a neural network, which contains an amodal hub, the sensorimotor modality-specific regions, and the connections between them. The exact neural basis of the hub, regions and connectivity remains unclear. Semantic dementia could be an ideal lesion model to construct the semantic network as this disease presents both amodal and modality-specific semantic processing (e.g. colour) deficits. The goal of the present study was to identify, using an unbiased data-driven approach, the semantic hub and its general and modality-specific semantic white matter connections by investigating the relationship between the lesion degree of the network and the severity of semantic deficits in 33 patients with semantic dementia. Data of diffusion-weighted imaging and behavioural performance in processing knowledge of general semantic and six sensorimotor modalities (i.e. object form, colour, motion, sound, manipulation and function) were collected from each subject. Specifically, to identify the semantic hub, we mapped the white matter nodal degree value (a graph theoretical index) of the 90 regions in the automated anatomical labelling atlas with the general semantic abilities of the patients. Of the regions, only the left fusiform gyrus was identified as the hub because its structural connectivity strength (i.e. nodal degree value) could significantly predict the general semantic processing of the patients. To identify the general and modality-specific semantic connections of the semantic hub, we separately correlated the white matter integrity values of each tract connected with the left fusiform gyrus, with the performance for general semantic processing and each of six semantic modality processing. The results showed that the hub region worked in concert with nine other regions in the semantic memory network for general semantic processing. Moreover, the connection between the hub and the left calcarine was associated with colour-specific semantic processing. The observed effects could not be accounted for by potential confounding variables (e.g. total grey matter volume, regional grey matter volume and performance on non-semantic control tasks). Our findings refine the neuroanatomical structure of the semantic network and underline the critical role of the left fusiform gyrus and its connectivity in the network.
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Affiliation(s)
- Yan Chen
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China.,College of Biomedical Engineering and Instrument Sciences, Zhejiang University, Hangzhou 310027, China
| | - Lin Huang
- Department of Gerontology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Keliang Chen
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Junhua Ding
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Yumei Zhang
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Qing Yang
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yingru Lv
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zaizhu Han
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Qihao Guo
- Department of Gerontology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
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18
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Rahul DR, Joseph Ponniah R. Language impairment in primary progressive aphasia and other neurodegenerative diseases. J Genet 2019. [DOI: 10.1007/s12041-019-1139-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Slegers A, Filiou RP, Montembeault M, Brambati SM. Connected Speech Features from Picture Description in Alzheimer's Disease: A Systematic Review. J Alzheimers Dis 2019; 65:519-542. [PMID: 30103314 DOI: 10.3233/jad-170881] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The language changes that occur over the course of Alzheimer's disease (AD) can impact communication abilities and have profound functional consequences. Picture description tasks can be used to approximate everyday communication abilities of AD patients. As various methods and variables have been studied over the years, current knowledge about the most affected features of AD discourse in the context of picture descriptions is difficult to summarize. This systematic review aims to provide researchers with an overview of the most common areas of impairment in AD discourse as they appear in picture description tasks. Based on the 44 articles fulfilling inclusion criteria, our findings reflect a multidimensional pattern of changes in the production (speech rate), syntactic (length of utterance), lexical (word-frequency and use of pronouns), fluency (repetitions and word-finding difficulties), semantic (information units), and discourse (efficiency) domains. We discuss our findings in the light of current research and point to potential scientific and clinical uses of picture description tasks in the context of AD.
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Affiliation(s)
- Antoine Slegers
- Département de Psychologie, Université de Montréal, Montréal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, QC, Canada
| | - Renée-Pier Filiou
- Département de Psychologie, Université de Montréal, Montréal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, QC, Canada
| | - Maxime Montembeault
- Département de Psychologie, Université de Montréal, Montréal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, QC, Canada
| | - Simona Maria Brambati
- Département de Psychologie, Université de Montréal, Montréal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, QC, Canada
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20
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Borghesani V, Narvid J, Battistella G, Shwe W, Watson C, Binney RJ, Sturm V, Miller Z, Mandelli ML, Miller B, Gorno-Tempini ML. "Looks familiar, but I do not know who she is": The role of the anterior right temporal lobe in famous face recognition. Cortex 2019; 115:72-85. [PMID: 30772608 PMCID: PMC6759326 DOI: 10.1016/j.cortex.2019.01.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 09/29/2018] [Accepted: 01/07/2019] [Indexed: 12/15/2022]
Abstract
Processing a famous face involves a cascade of steps including detecting the presence of a face, recognizing it as familiar, accessing semantic/biographical information about the person, and finally, if required, production of the proper name. Decades of neuropsychological and neuroimaging studies have identified a network of occipital and temporal brain regions ostensibly comprising the 'core' system for face processing. Recent research has also begun to elucidate upon an 'extended' network, including anterior temporal and frontal regions. However, there is disagreement about which brain areas are involved in each step, as many aspects of face processing occur automatically in healthy individuals and rarely dissociate in patients. Moreover, some common phenomena are not easily induced in an experimental setting, such as having a sense of familiarity without being able to recall who the person is. Patients with the semantic variant of Primary Progressive Aphasia (svPPA) often recognize a famous face as familiar, even when they cannot specifically recall the proper name or biographical details. In this study, we analyzed data from a large sample of 105 patients with neurodegenerative disorders, including 43 svPPA, to identify the neuroanatomical substrates of three different steps of famous face processing. Using voxel-based morphometry, we correlated whole-brain grey matter volumes with scores on three experimental tasks that targeted familiarity judgment, semantic/biographical information retrieval, and naming. Performance in naming and semantic association significantly correlates with grey matter volume in the left anterior temporal lobe, whereas familiarity judgment with integrity of the right anterior middle temporal gyrus. These findings shed light on the neuroanatomical substrates of key components of overt face processing, addressing issues of functional lateralization, and deepening our understanding of neural substrates of semantic knowledge.
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Affiliation(s)
- Valentina Borghesani
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA.
| | - Jared Narvid
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Giovanni Battistella
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA
| | - Wendy Shwe
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA
| | - Christa Watson
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA; Department of Neurology, Dyslexia Center, University of California, San Francisco, CA, USA
| | | | - Virginia Sturm
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA
| | - Zachary Miller
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA; Department of Neurology, Dyslexia Center, University of California, San Francisco, CA, USA
| | - Maria Luisa Mandelli
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA; Department of Neurology, Dyslexia Center, University of California, San Francisco, CA, USA
| | - Bruce Miller
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA
| | - Maria Luisa Gorno-Tempini
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA; Department of Neurology, Dyslexia Center, University of California, San Francisco, CA, USA
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21
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22
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Montembeault M, Chapleau M, Jarret J, Boukadi M, Laforce R, Wilson MA, Rouleau I, Brambati SM. Differential language network functional connectivity alterations in Alzheimer's disease and the semantic variant of primary progressive aphasia. Cortex 2019; 117:284-298. [PMID: 31034993 DOI: 10.1016/j.cortex.2019.03.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 01/21/2019] [Accepted: 03/21/2019] [Indexed: 01/18/2023]
Abstract
Patients with Alzheimer's disease (AD) and semantic variant primary progressive aphasia (svPPA) can present with similar language impairments, mainly in naming. It has been hypothesized that these deficits are associated with different brain mechanisms in each disease, but no previous study has used a network approach to explore this hypothesis. The aim of this study was to compare resting-state functional magnetic resonance imaging (rs-fMRI) language network in AD, svPPA patients, and cognitively unimpaired elderly adults (CTRL). Therefore, 10 AD patients, 12 svPPA patients and 11 CTRL underwent rs-fMRI. Seed-based functional connectivity analyses were conducted using regions of interest in the left anterior temporal lobe (ATL), left posterior middle temporal gyrus (pMTG) and left inferior frontal gyrus (IFG), applying a voxelwise correction for gray matter volume. In AD patients, the left pMTG was the only key language region showing functional connectivity changes, mainly a reduced interhemispheric functional connectivity with its right-hemisphere counterpart, in comparison to CTRL. In svPPA patients, we observed a functional isolation of the left ATL, both decreases and increases in functional connectivity from the left pMTG and increased functional connectivity form the left IFG. Post-hoc analyses showed that naming impairments were overall associated with the functional disconnections observed across the language network. In conclusion, AD and svPPA patients present distinct language network functional connectivity profiles. In AD patients, functional connectivity changes were restricted to the left pMTG and were overall less severe in comparison to svPPA patients. Results in svPPA patients suggest decreased functional connectivity along the ventral language pathway and increased functional connectivity along the dorsal language pathway. Finally, the observed connectivity patterns are overall consistent with previously reported structural connectivity and language profiles in these patients.
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Affiliation(s)
- Maxime Montembeault
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada; Département de psychologie, Université de Montréal, Montréal, QC, Canada.
| | - Marianne Chapleau
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada; Département de psychologie, Université de Montréal, Montréal, QC, Canada.
| | - Julien Jarret
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada; Département de psychologie, Université de Montréal, Montréal, QC, Canada.
| | - Mariem Boukadi
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada; Département de psychologie, Université de Montréal, Montréal, QC, Canada.
| | - Robert Laforce
- Clinique Interdisciplinaire de Mémoire (CIME) du CHU de Québec, QC, Canada; Faculté de médecine, Université Laval, Québec, QC, Canada.
| | - Maximiliano A Wilson
- Faculté de médecine, Université Laval, Québec, QC, Canada; Centre de recherche CERVO, Québec, QC, Canada.
| | - Isabelle Rouleau
- Département de psychologie, Université du Québec à Montréal, Montréal, QC, Canada; Centre de recherche du Centre hospitalier de l'Université de Montréal, Montréal, QC, Canada.
| | - Simona M Brambati
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada; Département de psychologie, Université de Montréal, Montréal, QC, Canada.
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Episodic and working memory function in Primary Progressive Aphasia: A meta-analysis. Neurosci Biobehav Rev 2018; 92:243-254. [DOI: 10.1016/j.neubiorev.2018.06.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/14/2018] [Accepted: 06/16/2018] [Indexed: 11/21/2022]
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Montembeault M, Brambati SM, Gorno-Tempini ML, Migliaccio R. Clinical, Anatomical, and Pathological Features in the Three Variants of Primary Progressive Aphasia: A Review. Front Neurol 2018; 9:692. [PMID: 30186225 PMCID: PMC6110931 DOI: 10.3389/fneur.2018.00692] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/31/2018] [Indexed: 11/22/2022] Open
Abstract
Primary progressive aphasias (PPA) are neurodegenerative diseases clinically characterized by an early and relatively isolated language impairment. Three main clinical variants, namely the nonfluent/agrammatic variant (nfvPPA), the semantic variant (svPPA), and the logopenic variant (lvPPA) have been described, each with specific linguistic/cognitive deficits, corresponding anatomical and most probable pathological features. Since the discovery and the development of diagnostic criteria for the PPA variants by the experts in the field, significant progress has been made in the understanding of these diseases. This review aims to provide an overview of the literature on each of the PPA variant in terms of their clinical, anatomical and pathological features, with a specific focus on recent findings. In terms of clinical advancements, recent studies have allowed a better characterization and differentiation of PPA patients based on both their linguistic and non-linguistic profiles. In terms of neuroimaging, techniques such as diffusion imaging and resting-state fMRI have allowed a deeper understanding of the impact of PPA on structural and functional connectivity alterations beyond the well-defined pattern of regional gray matter atrophy. Finally, in terms of pathology, despite significant advances, clinico-pathological correspondence in PPA remains far from absolute. Nonetheless, the improved characterization of PPA has the potential to have a positive impact on the management of patients. Improved reliability of diagnoses and the development of reliable in vivo biomarkers for underlying neuropathology will also be increasingly important in the future as trials for etiology-specific treatments become available.
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Affiliation(s)
- Maxime Montembeault
- INSERM U 1127, CNRS UMR 7225, Sorbonne Universités, and Université Pierre et Marie Curie-Paris 6, UMR S 1127, Institut du Cerveau et de la Moelle Épinière (ICM), FrontLab, Paris, France.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada.,Département de Psychologie, Université de Montréal, Montréal, QC, Canada
| | - Simona M Brambati
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada.,Département de Psychologie, Université de Montréal, Montréal, QC, Canada
| | - Maria Luisa Gorno-Tempini
- Memory and Aging Center, University of California at San Francisco, San Francisco, CA, United States
| | - Raffaella Migliaccio
- INSERM U 1127, CNRS UMR 7225, Sorbonne Universités, and Université Pierre et Marie Curie-Paris 6, UMR S 1127, Institut du Cerveau et de la Moelle Épinière (ICM), FrontLab, Paris, France.,Department of Neurology, Institut de la Mémoire et de la Maladie d'Alzheimer (IM2A), Paris, France
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25
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Linse K, Aust E, Joos M, Hermann A. Communication Matters-Pitfalls and Promise of Hightech Communication Devices in Palliative Care of Severely Physically Disabled Patients With Amyotrophic Lateral Sclerosis. Front Neurol 2018; 9:603. [PMID: 30100896 PMCID: PMC6072854 DOI: 10.3389/fneur.2018.00603] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 07/06/2018] [Indexed: 12/12/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is the most common motor neuron disease, leading to progressive paralysis, dysarthria, dysphagia, and respiratory disabilities. Therapy is mostly focused on palliative interventions. During the course of the disease, verbal as well as nonverbal communicative abilities become more and more impaired. In this light, communication has been argued to be “the essence of human life” and crucial for patients' quality of life. High-tech augmentative and alternative communication (HT-AAC) technologies such as eyetracking based computer devices and brain-computer-interfaces provide the possibility to maintain caregiver-independent communication and environmental control even in the advanced disease state of ALS. Thus, they enable patients to preserve social participation and to independently communicate end-of-life-decisions. In accordance with these functions of HT-AAC, their use is reported to strengthen self-determination, increase patients' quality of life and reduce caregiver burden. Therefore, HT-AAC should be considered as standard of (palliative) care for people with ALS. On the other hand, the supply with individually tailored HT-AAC technologies is limited by external and patient-inherent variables. This review aims to provide an overview of the possibilities and limitations of HT-AAC technologies and discuss their role in the palliative care for patients with ALS.
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Affiliation(s)
- Katharina Linse
- Department of Neurology, Technische Universität Dresden, Dresden, Germany.,German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
| | - Elisa Aust
- Department of Neurology, Technische Universität Dresden, Dresden, Germany
| | - Markus Joos
- Interactive Minds Dresden GmbH, Dresden, Germany
| | - Andreas Hermann
- Department of Neurology, Technische Universität Dresden, Dresden, Germany.,German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
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Hung J, Bauer A, Grossman M, Hamilton RH, Coslett HB, Reilly J. Semantic Feature Training in Combination with Transcranial Direct Current Stimulation (tDCS) for Progressive Anomia. Front Hum Neurosci 2017; 11:253. [PMID: 28559805 PMCID: PMC5432627 DOI: 10.3389/fnhum.2017.00253] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 04/27/2017] [Indexed: 01/08/2023] Open
Abstract
We examined the effectiveness of a 2-week regimen of a semantic feature training in combination with transcranial direct current stimulation (tDCS) for progressive naming impairment associated with primary progressive aphasia (N = 4) or early onset Alzheimer's Disease (N = 1). Patients received a 2-week regimen (10 sessions) of anodal tDCS delivered over the left temporoparietal cortex while completing a language therapy that consisted of repeated naming and semantic feature generation. Therapy targets consisted of familiar people, household items, clothes, foods, places, hygiene implements, and activities. Untrained items from each semantic category provided item level controls. We analyzed naming accuracies at multiple timepoints (i.e., pre-, post-, 6-month follow-up) via a mixed effects logistic regression and individual differences in treatment responsiveness using a series of non-parametric McNemar tests. Patients showed advantages for naming trained over untrained items. These gains were evident immediately post tDCS. Trained items also showed a shallower rate of decline over 6-months relative to untrained items that showed continued progressive decline. Patients tolerated stimulation well, and sustained improvements in naming accuracy suggest that the current intervention approach is viable. Future implementation of a sham control condition will be crucial toward ascertaining whether neurostimulation and behavioral treatment act synergistically or alternatively whether treatment gains are exclusively attributable to either tDCS or the behavioral intervention.
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Affiliation(s)
- Jinyi Hung
- Eleanor M. Saffran Center for Cognitive Neuroscience, Temple University, PhiladelphiaPA, USA
- Department of Communication Sciences and Disorders, Temple University, PhiladelphiaPA, USA
| | - Ashley Bauer
- Penn Frontotemporal Degeneration Center, Department of Neurology, Perelman School of Medicine, University of Pennsylvania, PhiladelphiaPA, USA
| | - Murray Grossman
- Penn Frontotemporal Degeneration Center, Department of Neurology, Perelman School of Medicine, University of Pennsylvania, PhiladelphiaPA, USA
| | - Roy H. Hamilton
- Center for Cognitive Neuroscience, Department of Neurology, Perelman School of Medicine, University of Pennsylvania, PhiladelphiaPA, USA
| | - H. B. Coslett
- Center for Cognitive Neuroscience, Department of Neurology, Perelman School of Medicine, University of Pennsylvania, PhiladelphiaPA, USA
| | - Jamie Reilly
- Eleanor M. Saffran Center for Cognitive Neuroscience, Temple University, PhiladelphiaPA, USA
- Department of Communication Sciences and Disorders, Temple University, PhiladelphiaPA, USA
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