Ventromedial-frontopolar prefrontal cortex atrophy correlates with insight loss in frontotemporal dementia and Alzheimer's disease

Hornberger, Michael, Yew, Belinda, Gilardoni, Silvia, Mioshi, Eneida, Gleichgerrcht, Ezequiel, Manes, Facundo and Hodges, John R. (2014) Ventromedial-frontopolar prefrontal cortex atrophy correlates with insight loss in frontotemporal dementia and Alzheimer's disease. Human Brain Mapping, 35 (2). pp. 616-626. ISSN 1065-9471

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Abstract

Loss in insight is a major feature of frontotemporal dementia (FTD) but has been investigated relatively little. More importantly, the neural basis of insight loss is still poorly understood. The current study investigated insight deficit profiles across a large cohort of neurodegenerative patients (n = 81), including FTD and Alzheimer's disease (AD) patients. We employed a novel insight questionnaire, which tapped into changes across different domains: social interaction, emotion, diagnosis/treatment, language, and motivation. FTD subtypes varied considerably for insight loss, with the behavioral variant worst and the progressive non-fluent variant least affected. All other subtypes and AD showed milder but consistent insight loss. Voxel-based morphometry analysis revealed that overall insight loss correlated with ventromedial and frontopolar prefrontal atrophy, with exception of social interaction and emotion insight loss, which additionally correlated with lateral temporal and amygdala atrophy, respectively. Our results show that patients with neurodegenerative conditions show variable loss of insight, with ventromedial and frontopolar cortex regions appearing to be particularly important for insight. Hum Brain Mapp 35:616-626, 2014.

Item Type: Article
Uncontrolled Keywords: alzheimer's disease,frontopolar cortex,frontotemporal dementia,insight,self-evaluation,ventromedial frontal cortex,voxel-based morphometry
Faculty \ School:
Faculty of Medicine and Health Sciences > Norwich Medical School
Faculty of Medicine and Health Sciences > School of Health Sciences
Related URLs:
Depositing User: Pure Connector
Date Deposited: 04 Jan 2016 13:01
Last Modified: 22 Apr 2020 00:50
URI: https://ueaeprints.uea.ac.uk/id/eprint/55942
DOI: 10.1002/hbm.22200

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