Episodic memory; aging; fMRI; pattern similarity; shared memory; Neuropsychology and Physiological Psychology; Experimental and Cognitive Psychology; Geriatrics and Gerontology; Psychiatry and Mental Health
Abstract :
[en] Recent advances in multivariate neuroimaging analyses have made possible the examination of the similarity of the neural patterns of activations measured across participants, but it has not been investigated yet whether such measure is age-sensitive. Here, in the scanner, young and older participants viewed scene pictures associated with labels. At test, participants were presented with the labels and were asked to recollect the associated picture. We used Pattern Similarity Analyses by which we compared patterns of neural activation during the encoding or the remembering of each picture of one participant with the averaged pattern of activation across the remaining participants. Results revealed that across-participants neural similarity was higher in young than in older adults in distributed occipital, temporal and parietal areas during encoding and retrieval. These findings demonstrate that an age-related reduction in specificity of neural activation is also evident when the similarity of neural representations is examined across participants.
Disciplines :
Neurosciences & behavior
Author, co-author :
Folville, Adrien ; Université de Liège - ULiège > GIGA > GIGA CRC In vivo Imaging - Aging & Memory
Bahri, Mohamed Ali; GIGA-CRC in Vivo Imaging, University of Liège, Liège, Belgium
Delhaye, Emma ; Université de Liège - ULiège > GIGA > GIGA CRC In vivo Imaging - Aging & Memory ; Faculdade de Psicologia, CICPSI, Universidade de Lisboa, Lisbon, Portugal
SALMON, Eric ; Centre Hospitalier Universitaire de Liège - CHU > > Service de neurologie
Bastin, Christine ; Université de Liège - ULiège > GIGA > GIGA CRC In vivo Imaging - Aging & Memory
Language :
English
Title :
Shared vivid remembering: age-related differences in across-participants similarity of neural representations during encoding and retrieval.
Publication date :
15 February 2022
Journal title :
Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
ISSN :
1382-5585
eISSN :
1744-4128
Publisher :
Routledge, United States
Special issue title :
Advances in understanding the cognitive neuroscience of aging with multivariate methods
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