What Are the Neural Correlates of Impaired Awareness of Social Cognition and Function in Dementia? A Systematic Review

Deficits in social cognition and function are characteristic of dementia, commonly accompanied by a loss of awareness of the presence or extent of these deficits. This lack of awareness can impair social relationships, increase patients’ and carers’ burden, and contribute to increased rates of insti...

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Main Authors: Anna Hengstschläger, Andrew Sommerlad, Jonathan Huntley
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/12/9/1136
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author Anna Hengstschläger
Andrew Sommerlad
Jonathan Huntley
author_facet Anna Hengstschläger
Andrew Sommerlad
Jonathan Huntley
author_sort Anna Hengstschläger
collection DOAJ
description Deficits in social cognition and function are characteristic of dementia, commonly accompanied by a loss of awareness of the presence or extent of these deficits. This lack of awareness can impair social relationships, increase patients’ and carers’ burden, and contribute to increased rates of institutionalization. Despite clinical importance, neural correlates of this complex phenomenon remain unclear. We conducted a systematic search of five electronic databases to identify functional and structural neuroimaging studies investigating the neural correlates of impaired awareness of social cognition and function in any dementia type. We rated study quality and conducted a narrative synthesis of the results of the eight studies that met the predefined eligibility criteria. Across these studies, deficits in awareness of impairments in social cognition and function were associated with structural or functional abnormalities in the frontal pole, orbitofrontal cortex, temporal pole, middle temporal gyrus, inferior temporal gyrus, fusiform gyrus, amygdala, hippocampus, parahippocampal gyrus, and insula. Several identified regions overlap with established neural correlates of social cognition. More research is needed to understand awareness of social cognition and function and how this becomes impaired in dementia to improve neuroscientific understanding, aid the identification of this problematic symptom, and target interventions to reduce burden and improve care.
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spelling doaj.art-4b4e69dde7e046da8868bce55cfe7d352023-11-23T15:19:48ZengMDPI AGBrain Sciences2076-34252022-08-01129113610.3390/brainsci12091136What Are the Neural Correlates of Impaired Awareness of Social Cognition and Function in Dementia? A Systematic ReviewAnna Hengstschläger0Andrew Sommerlad1Jonathan Huntley2Division of Psychiatry, University College London, London W1T 7BN, UKDivision of Psychiatry, University College London, London W1T 7BN, UKDivision of Psychiatry, University College London, London W1T 7BN, UKDeficits in social cognition and function are characteristic of dementia, commonly accompanied by a loss of awareness of the presence or extent of these deficits. This lack of awareness can impair social relationships, increase patients’ and carers’ burden, and contribute to increased rates of institutionalization. Despite clinical importance, neural correlates of this complex phenomenon remain unclear. We conducted a systematic search of five electronic databases to identify functional and structural neuroimaging studies investigating the neural correlates of impaired awareness of social cognition and function in any dementia type. We rated study quality and conducted a narrative synthesis of the results of the eight studies that met the predefined eligibility criteria. Across these studies, deficits in awareness of impairments in social cognition and function were associated with structural or functional abnormalities in the frontal pole, orbitofrontal cortex, temporal pole, middle temporal gyrus, inferior temporal gyrus, fusiform gyrus, amygdala, hippocampus, parahippocampal gyrus, and insula. Several identified regions overlap with established neural correlates of social cognition. More research is needed to understand awareness of social cognition and function and how this becomes impaired in dementia to improve neuroscientific understanding, aid the identification of this problematic symptom, and target interventions to reduce burden and improve care.https://www.mdpi.com/2076-3425/12/9/1136dementiasocial cognitionsocial functionawarenessneuroimaging
spellingShingle Anna Hengstschläger
Andrew Sommerlad
Jonathan Huntley
What Are the Neural Correlates of Impaired Awareness of Social Cognition and Function in Dementia? A Systematic Review
Brain Sciences
dementia
social cognition
social function
awareness
neuroimaging
title What Are the Neural Correlates of Impaired Awareness of Social Cognition and Function in Dementia? A Systematic Review
title_full What Are the Neural Correlates of Impaired Awareness of Social Cognition and Function in Dementia? A Systematic Review
title_fullStr What Are the Neural Correlates of Impaired Awareness of Social Cognition and Function in Dementia? A Systematic Review
title_full_unstemmed What Are the Neural Correlates of Impaired Awareness of Social Cognition and Function in Dementia? A Systematic Review
title_short What Are the Neural Correlates of Impaired Awareness of Social Cognition and Function in Dementia? A Systematic Review
title_sort what are the neural correlates of impaired awareness of social cognition and function in dementia a systematic review
topic dementia
social cognition
social function
awareness
neuroimaging
url https://www.mdpi.com/2076-3425/12/9/1136
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