Paranoid and misidentification subtypes of psychosis in dementia
Article
Pearce, D., Gould, R., Roughley, M., Reynolds, G., Ward, E., Bhome, R. and Reeves, S. 2022. Paranoid and misidentification subtypes of psychosis in dementia. Neuroscience & Biobehavioral Reviews. 134, pp. 1-11. https://doi.org/10.1016/j.neubiorev.2022.104529
Type | Article |
---|---|
Title | Paranoid and misidentification subtypes of psychosis in dementia |
Authors | Pearce, D., Gould, R., Roughley, M., Reynolds, G., Ward, E., Bhome, R. and Reeves, S. |
Abstract | This study aimed to review the neurobiological and neuropsychological correlates of paranoid (persecutory delusions) and misidentification (misidentification delusions and/or hallucinations) subtypes of psychosis in dementia, to establish if they represent distinct subphenotypes. Nine studies were eligible, all included patients with Alzheimer’s disease. Greater global cognitive deficits and an accelerated global cognitive decline were observed in the misidentification subtype. Neuroimaging studies showed more marked volume loss in multiple regions in patients with the misidentification subtype, including those involved in object recognition and the processing of information on spatial and temporal context. A single study found greater impairment in visual sustained attention and object recognition in the misidentification subtype. The small number of studies and methodological heterogeneity limit interpretation of the findings. Nevertheless, these findings would tentatively suggest that there may be additional or accelerated pathological change in functional networks involved in visuoperceptual processing in the misidentification subtype. This should be further explored in prospective studies and the investigation extended to other forms of dementia, to gain a transdiagnostic perspective. |
Keywords | Dementia; Delusions; Misidentification; Persecutory; Paranoid; Neurobiology; Neuropsychology |
Publisher | Elsevier |
Journal | Neuroscience & Biobehavioral Reviews |
ISSN | 0149-7634 |
Electronic | 1873-7528 |
Publication dates | |
Online | 12 Jan 2022 |
Mar 2022 | |
Publication process dates | |
Deposited | 11 Jan 2022 |
Accepted | 09 Jan 2022 |
Submitted | 31 Mar 2021 |
Output status | Published |
Publisher's version | License File Access Level Open |
Accepted author manuscript | License File Access Level Open |
Copyright Statement | © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.neubiorev.2022.104529 |
Web of Science identifier | WOS:000761998400015 |
Language | English |
https://repository.mdx.ac.uk/item/899zq
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License: CC BY-NC-ND 4.0 | ||
File access level: Open |
Accepted author manuscript
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License: CC BY-NC-ND 4.0 | ||
File access level: Open |
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