Publication
Title
Dissociating effects of aging and genetic risk of sporadic Alzheimer's disease on path integration
Author
Abstract
Path integration is a spatial navigation ability that requires the integration of information derived from self motion cues and stable landmarks, when available, to return to a previous location. Path integration declines with age and Alzheimer's disease (AD). Here, we sought to separate the effects of age and AD risk on path integration, with and without a landmark. Overall, 279 people participated, aged between 18 and 80 years old. Advanced age impaired the appropriate use of a landmark. Older participants furthermore remembered the location of the goal relative to their starting location and reproduced this initial view without considering that they had moved in the environment. This lack of adaptative behavior was not associated with AD risk. In contrast, participants at genetic risk of AD (apolipoprotein E epsilon 4 carriers) exhibited a pure path integration deficit, corresponding to difficulty in performing path integration in the absence of a landmark. Our results show that advanced-age impacts landmark-supported path integration, and that this age effect is dissociable from the effects of AD risk impacting pure path integration.(c) 2023 Elsevier Inc. All rights reserved.
Language
English
Source (journal)
Neurobiology of aging. - Fayetteville, N.Y.
Publication
Fayetteville, N.Y. : 2023
ISSN
0197-4580
DOI
10.1016/J.NEUROBIOLAGING.2023.07.025
Volume/pages
131 (2023) , p. 170-181
ISI
001074798900001
Pubmed ID
37672944
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 30.10.2023
Last edited 22.11.2023
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