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Recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep

Offline reactivation of task-related neural activity has been demonstrated in animals but is difficult to directly observe in humans. We sought to identify potential electroencephalographic (EEG) markers of offline memory processing in human subjects by identifying a set of characteristic EEG topogr...

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Autores principales: Murphy, Michael, Stickgold, Robert, Parr, Mittie Elaine, Callahan, Cameron, Wamsley, Erin J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5876367/
https://www.ncbi.nlm.nih.gov/pubmed/29599462
http://dx.doi.org/10.1038/s41598-018-23590-1
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author Murphy, Michael
Stickgold, Robert
Parr, Mittie Elaine
Callahan, Cameron
Wamsley, Erin J.
author_facet Murphy, Michael
Stickgold, Robert
Parr, Mittie Elaine
Callahan, Cameron
Wamsley, Erin J.
author_sort Murphy, Michael
collection PubMed
description Offline reactivation of task-related neural activity has been demonstrated in animals but is difficult to directly observe in humans. We sought to identify potential electroencephalographic (EEG) markers of offline memory processing in human subjects by identifying a set of characteristic EEG topographies (“microstates”) that occurred as subjects learned to navigate a virtual maze. We hypothesized that these task-related microstates would appear during post-task periods of rest and sleep. In agreement with this hypothesis, we found that one task-related microstate was increased in post-training rest and sleep compared to baseline rest, selectively for subjects who actively learned the maze, and not in subjects performing a non-learning control task. Source modeling showed that this microstate was produced by activity in temporal and parietal networks, which are known to be involved in spatial navigation. For subjects who napped after training, the increase in this task-related microstate predicted the magnitude of subsequent change in performance. Our findings demonstrate that task-related EEG patterns re-emerge during post-training rest and sleep.
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spelling pubmed-58763672018-04-02 Recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep Murphy, Michael Stickgold, Robert Parr, Mittie Elaine Callahan, Cameron Wamsley, Erin J. Sci Rep Article Offline reactivation of task-related neural activity has been demonstrated in animals but is difficult to directly observe in humans. We sought to identify potential electroencephalographic (EEG) markers of offline memory processing in human subjects by identifying a set of characteristic EEG topographies (“microstates”) that occurred as subjects learned to navigate a virtual maze. We hypothesized that these task-related microstates would appear during post-task periods of rest and sleep. In agreement with this hypothesis, we found that one task-related microstate was increased in post-training rest and sleep compared to baseline rest, selectively for subjects who actively learned the maze, and not in subjects performing a non-learning control task. Source modeling showed that this microstate was produced by activity in temporal and parietal networks, which are known to be involved in spatial navigation. For subjects who napped after training, the increase in this task-related microstate predicted the magnitude of subsequent change in performance. Our findings demonstrate that task-related EEG patterns re-emerge during post-training rest and sleep. Nature Publishing Group UK 2018-03-29 /pmc/articles/PMC5876367/ /pubmed/29599462 http://dx.doi.org/10.1038/s41598-018-23590-1 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Murphy, Michael
Stickgold, Robert
Parr, Mittie Elaine
Callahan, Cameron
Wamsley, Erin J.
Recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep
title Recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep
title_full Recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep
title_fullStr Recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep
title_full_unstemmed Recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep
title_short Recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep
title_sort recurrence of task-related electroencephalographic activity during post-training quiet rest and sleep
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5876367/
https://www.ncbi.nlm.nih.gov/pubmed/29599462
http://dx.doi.org/10.1038/s41598-018-23590-1
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