Neural correlates of altered insight in frontotemporal dementia: a systematic review.
Amyotrophic Lateral Sclerosis
/ diagnostic imaging
Aphasia, Primary Progressive
/ diagnostic imaging
Brain
/ diagnostic imaging
Frontotemporal Dementia
/ diagnostic imaging
Humans
Magnetic Resonance Imaging
Metacognition
Positron-Emission Tomography
Primary Progressive Nonfluent Aphasia
/ diagnostic imaging
Self Concept
Tomography, Emission-Computed, Single-Photon
Tomography, X-Ray Computed
Frontotemporal dementia
Insight
Neural correlates
Journal
NeuroImage. Clinical
ISSN: 2213-1582
Titre abrégé: Neuroimage Clin
Pays: Netherlands
ID NLM: 101597070
Informations de publication
Date de publication:
2019
2019
Historique:
received:
06
06
2019
revised:
14
09
2019
accepted:
03
11
2019
pubmed:
5
12
2019
medline:
22
9
2020
entrez:
5
12
2019
Statut:
ppublish
Résumé
Altered insight into disease or specific symptoms is a prominent clinical feature of frontotemporal dementia (FTD). Understanding the neural bases of insight is crucial to help improve FTD diagnosis, classification and management. A systematic review to explore the neural correlates of altered insight in FTD and associated syndromes was conducted. Insight was fractionated to examine whether altered insight into different neuropsychological/behavioural objects is underpinned by different or compatible neural correlates. 6 databases (Medline, Embase, PsycINFO, Web of Science, BIOSIS and ProQuest Dissertations & Theses Global) were interrogated between 1980 and August 2019. 15 relevant papers were found out of 660 titles screened. The studies included suggest that different objects of altered insight are associated with distinctive brain areas in FTD. For example, disease unawareness appears to predominantly correlate with right frontal involvement. In contrast, altered insight into social cognition potentially involves, in addition to frontal areas, the temporal gyrus, insula, parahippocampus and amygdala. Impaired insight into memory problems appears to be related to the frontal lobes, postcentral gyrus, parietal cortex and posterior cingulate. These results reflect to a certain extent those observed in other neurodegenerative conditions like Alzheimer's disease (AD) and also other brain disorders. Nevertheless, they should be cautiously interpreted due to variability in the methodological aspects used to reach those conclusions. Future work should triangulate different insight assessment approaches and brain imaging techniques to increase the understanding of this highly relevant clinical phenomenon in dementia.
Identifiants
pubmed: 31795052
pii: S2213-1582(19)30413-9
doi: 10.1016/j.nicl.2019.102066
pmc: PMC6889795
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Systematic Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
102066Informations de copyright
Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved.
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