Social Cognition Deficits Are Pervasive across Both Classical and Overlap Frontotemporal Dementia Syndromes.

IF 1.4 Q4 CLINICAL NEUROLOGY
Dementia and Geriatric Cognitive Disorders Extra Pub Date : 2020-11-04 eCollection Date: 2020-09-01 DOI:10.1159/000511329
Faheem Arshad, Avanthi Paplikar, Shailaja Mekala, Feba Varghese, Vandana Valiyaparambath Purushothaman, Darshini Jeevandra Kumar, Leena Shingavi, Seena Vengalil, Subasree Ramakrishnan, Ravi Yadav, Pramod Kumar Pal, Atchayaram Nalini, Suvarna Alladi
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引用次数: 12

Abstract

Objectives: Frontotemporal dementia (FTD) syndromes are a complex group of disorders characterised by profound changes in behaviour and cognition. Many of the observed behavioural abnormalities are now recognised to be due to impaired social cognition. While deficits in emotion recognition and empathy are well-recognised in behavioural-variant (Bv)FTD, limited information exists about the nature of social cognitive impairment in the language variant primary progressive aphasia (PPA) that includes progressive non-fluent aphasia (PNFA) and semantic dementia (SD), and in the motor variants FTD amyotrophic lateral sclerosis (FTD-ALS) and FTD progressive supranuclear palsy (FTD-PSP). This prospective study sought to explore the nature and profile of social cognition deficits across the spectrum of FTD.

Methods: Sixty patients on the FTD spectrum, i.e., classical (16 with BvFTD and 20 with PPA) and overlap FTD syndromes (13 with FTD-ALS and 11 with FTD-PSP) were evaluated by means of the social cognition tasks, the Interpersonal Reactivity Index (IRI) for empathy, and pictures of facial affect (POFA) for emotion recognition. General cognition and behaviour were also assessed.

Results: A significant impairment in emotion recognition and empathy was detected in both the classical and overlap FTD syndromes. The recognition of positive emotions was relatively preserved compared to that of negative emotions. Among the FTD subtypes, maximal impairment of empathy was demonstrated in FTD-PSP.

Conclusion: Social cognition impairment is pervasive across the spectrum of FTD disorders, and tests of emotion recognition and empathy are clinically useful to identify the nature of behavioural problems in both classical and overlap FTD. Our findings also have implications for understanding the neural basis of social cognition in FTD.

社会认知缺陷在经典和重叠额颞叶痴呆综合征中普遍存在。
目的:额颞叶痴呆(FTD)综合征是一组复杂的疾病,其特征是行为和认知的深刻变化。许多观察到的行为异常现在被认为是由于社会认知受损。虽然情绪识别和共情缺陷在行为变异性(Bv)FTD中得到了很好的认识,但关于语言变异性原发性进行性失语症(PPA)(包括进行性非流利性失语症(PNFA)和语义性痴呆(SD))以及运动变异性FTD肌萎缩性侧索硬化症(FTD- als)和FTD进行性核上性麻痹(FTD- psp)的社会认知障碍的性质的信息有限。本前瞻性研究旨在探讨跨谱系FTD的社会认知缺陷的性质和概况。方法:采用社会认知任务、共情人际反应指数(IRI)和情绪识别面部表情图(POFA)对60例FTD患者进行评价,分别为典型型(BvFTD 16例、PPA 20例)和重叠型(FTD- als 13例、FTD- psp 11例)。一般认知和行为也被评估。结果:经典型和重叠型FTD均存在显著的情绪识别和共情功能障碍。与消极情绪相比,积极情绪的认知相对保持不变。在FTD亚型中,FTD- psp亚型表现出最大的共情损害。结论:社会认知障碍在各种FTD障碍中普遍存在,情绪识别和共情测试在临床上有助于识别经典和重叠型FTD的行为问题的性质。我们的研究结果也对理解FTD社会认知的神经基础具有启示意义。
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来源期刊
Dementia and Geriatric Cognitive Disorders Extra
Dementia and Geriatric Cognitive Disorders Extra Medicine-Psychiatry and Mental Health
CiteScore
4.30
自引率
0.00%
发文量
18
审稿时长
9 weeks
期刊介绍: This open access and online-only journal publishes original articles covering the entire spectrum of cognitive dysfunction such as Alzheimer’s and Parkinson’s disease, Huntington’s chorea and other neurodegenerative diseases. The journal draws from diverse related research disciplines such as psychogeriatrics, neuropsychology, clinical neurology, morphology, physiology, genetic molecular biology, pathology, biochemistry, immunology, pharmacology and pharmaceutics. Strong emphasis is placed on the publication of research findings from animal studies which are complemented by clinical and therapeutic experience to give an overall appreciation of the field. Dementia and Geriatric Cognitive Disorders Extra provides additional contents based on reviewed and accepted submissions to the main journal Dementia and Geriatric Cognitive Disorders Extra .
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