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Rhythms of human attention and memory: An embedded process perspective

It remains a dogma in cognitive neuroscience to separate human attention and memory into distinct modules and processes. Here we propose that brain rhythms reflect the embedded nature of these processes in the human brain, as evident from their shared neural signatures: gamma oscillations (30–90 Hz)...

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Detalles Bibliográficos
Autores principales: Köster, Moritz, Gruber, Thomas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9579292/
https://www.ncbi.nlm.nih.gov/pubmed/36277046
http://dx.doi.org/10.3389/fnhum.2022.905837
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author Köster, Moritz
Gruber, Thomas
author_facet Köster, Moritz
Gruber, Thomas
author_sort Köster, Moritz
collection PubMed
description It remains a dogma in cognitive neuroscience to separate human attention and memory into distinct modules and processes. Here we propose that brain rhythms reflect the embedded nature of these processes in the human brain, as evident from their shared neural signatures: gamma oscillations (30–90 Hz) reflect sensory information processing and activated neural representations (memory items). The theta rhythm (3–8 Hz) is a pacemaker of explicit control processes (central executive), structuring neural information processing, bit by bit, as reflected in the theta-gamma code. By representing memory items in a sequential and time-compressed manner the theta-gamma code is hypothesized to solve key problems of neural computation: (1) attentional sampling (integrating and segregating information processing), (2) mnemonic updating (implementing Hebbian learning), and (3) predictive coding (advancing information processing ahead of the real time to guide behavior). In this framework, reduced alpha oscillations (8–14 Hz) reflect activated semantic networks, involved in both explicit and implicit mnemonic processes. Linking recent theoretical accounts and empirical insights on neural rhythms to the embedded-process model advances our understanding of the integrated nature of attention and memory – as the bedrock of human cognition.
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spelling pubmed-95792922022-10-20 Rhythms of human attention and memory: An embedded process perspective Köster, Moritz Gruber, Thomas Front Hum Neurosci Human Neuroscience It remains a dogma in cognitive neuroscience to separate human attention and memory into distinct modules and processes. Here we propose that brain rhythms reflect the embedded nature of these processes in the human brain, as evident from their shared neural signatures: gamma oscillations (30–90 Hz) reflect sensory information processing and activated neural representations (memory items). The theta rhythm (3–8 Hz) is a pacemaker of explicit control processes (central executive), structuring neural information processing, bit by bit, as reflected in the theta-gamma code. By representing memory items in a sequential and time-compressed manner the theta-gamma code is hypothesized to solve key problems of neural computation: (1) attentional sampling (integrating and segregating information processing), (2) mnemonic updating (implementing Hebbian learning), and (3) predictive coding (advancing information processing ahead of the real time to guide behavior). In this framework, reduced alpha oscillations (8–14 Hz) reflect activated semantic networks, involved in both explicit and implicit mnemonic processes. Linking recent theoretical accounts and empirical insights on neural rhythms to the embedded-process model advances our understanding of the integrated nature of attention and memory – as the bedrock of human cognition. Frontiers Media S.A. 2022-10-05 /pmc/articles/PMC9579292/ /pubmed/36277046 http://dx.doi.org/10.3389/fnhum.2022.905837 Text en Copyright © 2022 Köster and Gruber. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Human Neuroscience
Köster, Moritz
Gruber, Thomas
Rhythms of human attention and memory: An embedded process perspective
title Rhythms of human attention and memory: An embedded process perspective
title_full Rhythms of human attention and memory: An embedded process perspective
title_fullStr Rhythms of human attention and memory: An embedded process perspective
title_full_unstemmed Rhythms of human attention and memory: An embedded process perspective
title_short Rhythms of human attention and memory: An embedded process perspective
title_sort rhythms of human attention and memory: an embedded process perspective
topic Human Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9579292/
https://www.ncbi.nlm.nih.gov/pubmed/36277046
http://dx.doi.org/10.3389/fnhum.2022.905837
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