Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/111812
Title: Temporally Distinct Oscillatory Codes of Retention and Manipulation of Verbal Working Memory
Authors: Pavlov, Y. G.
Kotchoubey, B.
Issue Date: 2021
Publisher: John Wiley and Sons Inc
Wiley
Citation: Pavlov Y. G. Temporally Distinct Oscillatory Codes of Retention and Manipulation of Verbal Working Memory / Y. G. Pavlov, B. Kotchoubey // European Journal of Neuroscience. — 2021. — Vol. 54. — Iss. 7. — P. 6497-6511.
Abstract: Most psychophysiological studies of working memory (WM) target only the short-term memory construct, whereas short-term memory is only a part of the WM responsible for the storage of sensory information. Here, we aimed to further investigate oscillatory brain mechanisms supporting the executive components of WM—the part responsible for the manipulation of information. We conducted an exploratory reanalysis of a previously published EEG dataset where 156 participants (82 females) performed tasks requiring either simple retention or retention and manipulation of verbal information in WM. A relatively long delay period (>6 s) was employed to investigate the temporal trajectory of the oscillatory brain activity. Compared with baseline, theta activity was significantly enhanced during encoding and the delay period. Alpha-band power decreased during encoding and switched to an increase in the first part of the delay before returning to the baseline in the second part; beta-band power remained below baseline during encoding and the delay. The difference between the manipulation and retention tasks in spectral power had diverse temporal trajectories in different frequency bands. The difference maintained over encoding and the first part of the delay in theta, during the first part of the delay in beta, and during the whole delay period in alpha. Our results suggest that task-related modulations in theta power co-vary with the demands on the executive control network; beta suppression during mental manipulation can be related to the activation of motor networks; and alpha is likely to reflect the activation of language areas simultaneously with sensory input blockade. © 2021 The Authors. European Journal of Neuroscience published by Federation of European Neuroscience Societies and John Wiley & Sons Ltd.
Keywords: EEG
FRONTAL MIDLINE THETA
OSCILLATORY BRAIN ACTIVITY
SHORT-TERM MEMORY
ADULT
ARTICLE
BRAIN FUNCTION
CONTROLLED STUDY
EXECUTIVE NETWORK
FEMALE
HUMAN
HUMAN EXPERIMENT
LANGUAGE
MAJOR CLINICAL STUDY
MALE
SENSORY STIMULATION
SHORT TERM MEMORY
THETA RHYTHM
WORKING MEMORY
ELECTROENCEPHALOGRAPHY
EXECUTIVE FUNCTION
BRAIN
ELECTROENCEPHALOGRAPHY
EXECUTIVE FUNCTION
HUMANS
MEMORY, SHORT-TERM
URI: http://hdl.handle.net/10995/111812
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85115825762
PURE ID: 23895522
ISSN: 0953-816X
metadata.dc.description.sponsorship: Study was supported by Russian Foundation for Basic Research (RFBR) №19‐013‐00027.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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