Differential Brain Mechanisms of Selection and Maintenance of Information during Working Memory.

Details

Serval ID
serval:BIB_6F62D9164BB5
Type
Article: article from journal or magazin.
Collection
Publications
Title
Differential Brain Mechanisms of Selection and Maintenance of Information during Working Memory.
Journal
The Journal of neuroscience
Author(s)
Quentin R., King J.R., Sallard E., Fishman N., Thompson R., Buch E.R., Cohen L.G.
ISSN
1529-2401 (Electronic)
ISSN-L
0270-6474
Publication state
Published
Issued date
08/05/2019
Peer-reviewed
Oui
Volume
39
Number
19
Pages
3728-3740
Language
english
Notes
Publication types: Journal Article ; Research Support, N.I.H., Intramural ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Working memory is our ability to select and temporarily hold information as needed for complex cognitive operations. The temporal dynamics of sustained and transient neural activity supporting the selection and holding of memory content is not known. To address this problem, we recorded magnetoencephalography in healthy participants performing a retro-cue working memory task in which the selection rule and the memory content varied independently. Multivariate decoding and source analyses showed that selecting the memory content relies on prefrontal and parieto-occipital persistent oscillatory neural activity. By contrast, the memory content was reactivated in a distributed occipitotemporal posterior network, preceding the working memory decision and in a different format than during the visual encoding. These results identify a neural signature of content selection and characterize differentiated spatiotemporal constraints for subprocesses of working memory.SIGNIFICANCE STATEMENT Our brain selects and maintains information during short time windows in a way that is essential to reasoning and learning. Recent advances in multivariate analysis of brain activity allowed the characterization of brain regions that stores the memory. We applied multivariate analysis to time-resolved brain signals to characterize the spatiotemporal signature underlying these subprocesses. The selection of information relies on sustained oscillatory activity in a network that includes the ventrolateral prefrontal cortex while memory content is transiently replayed in an occipitotemporal network that differs from encoding. Our results characterized differentiated spatiotemporal activity underlying encoding, selection, and maintenance of information during working memory.
Keywords
Adult, Brain/physiology, Brain Mapping/methods, Female, Humans, Magnetoencephalography/methods, Male, Memory, Short-Term/physiology, Nerve Net/physiology, Photic Stimulation/methods, Psychomotor Performance/physiology, Young Adult, MVPA, decoding, magnetoencephalography, selection rule, temporal dynamics, working memory
Pubmed
Web of science
Open Access
Yes
Create date
12/04/2022 10:32
Last modification date
12/04/2022 10:32
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