Common oscillatory mechanisms across multiple memory systems

Abstract The cortex, hippocampus, and striatum support dissociable forms of memory. While each of these regions contains specialized circuitry supporting their respective functions, all structure their activities across time with delta, theta, and gamma rhythms. We review how these oscillations are...

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Autores principales:	Drew B. Headley, Denis Paré
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Special aspects of education LC8-6691 Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571
Acceso en línea:	https://doaj.org/article/09dec7b5768e45e7bc926fa185b0062f
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spelling	oai:doaj.org-article:09dec7b5768e45e7bc926fa185b0062f2021-12-02T11:51:10ZCommon oscillatory mechanisms across multiple memory systems10.1038/s41539-016-0001-22056-7936https://doaj.org/article/09dec7b5768e45e7bc926fa185b0062f2017-01-01T00:00:00Zhttps://doi.org/10.1038/s41539-016-0001-2https://doaj.org/toc/2056-7936Abstract The cortex, hippocampus, and striatum support dissociable forms of memory. While each of these regions contains specialized circuitry supporting their respective functions, all structure their activities across time with delta, theta, and gamma rhythms. We review how these oscillations are generated and how they coordinate distinct memory systems during encoding, consolidation, and retrieval. First, gamma oscillations occur in all regions and coordinate local spiking, compressing it into short population bursts. Second, gamma oscillations are modulated by delta and theta oscillations. Third, oscillatory dynamics in these memory systems can operate in either a “slow” or “fast” mode. The slow mode happens during slow-wave sleep and is characterized by large irregular activity in the hippocampus and delta oscillations in cortical and striatal circuits. The fast mode occurs during active waking and rapid eye movement (REM) sleep and is characterized by theta oscillations in the hippocampus and its targets, along with gamma oscillations in the rest of cortex. In waking, the fast mode is associated with the efficacious encoding and retrieval of declarative and procedural memories. Theta and gamma oscillations have similar relationships with encoding and retrieval across multiple forms of memory and brain regions, despite regional differences in microcircuitry and information content. Differences in the oscillatory coordination of memory systems during sleep might explain why the consolidation of some forms of memory is sensitive to slow-wave sleep, while others depend on REM. In particular, theta oscillations appear to support the consolidation of certain types of procedural memories during REM, while delta oscillations during slow-wave sleep seem to promote declarative and procedural memories.Drew B. HeadleyDenis ParéNature PortfolioarticleSpecial aspects of educationLC8-6691Neurosciences. Biological psychiatry. NeuropsychiatryRC321-571ENnpj Science of Learning, Vol 2, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Special aspects of education LC8-6691 Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571
spellingShingle	Special aspects of education LC8-6691 Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Drew B. Headley Denis Paré Common oscillatory mechanisms across multiple memory systems
description	Abstract The cortex, hippocampus, and striatum support dissociable forms of memory. While each of these regions contains specialized circuitry supporting their respective functions, all structure their activities across time with delta, theta, and gamma rhythms. We review how these oscillations are generated and how they coordinate distinct memory systems during encoding, consolidation, and retrieval. First, gamma oscillations occur in all regions and coordinate local spiking, compressing it into short population bursts. Second, gamma oscillations are modulated by delta and theta oscillations. Third, oscillatory dynamics in these memory systems can operate in either a “slow” or “fast” mode. The slow mode happens during slow-wave sleep and is characterized by large irregular activity in the hippocampus and delta oscillations in cortical and striatal circuits. The fast mode occurs during active waking and rapid eye movement (REM) sleep and is characterized by theta oscillations in the hippocampus and its targets, along with gamma oscillations in the rest of cortex. In waking, the fast mode is associated with the efficacious encoding and retrieval of declarative and procedural memories. Theta and gamma oscillations have similar relationships with encoding and retrieval across multiple forms of memory and brain regions, despite regional differences in microcircuitry and information content. Differences in the oscillatory coordination of memory systems during sleep might explain why the consolidation of some forms of memory is sensitive to slow-wave sleep, while others depend on REM. In particular, theta oscillations appear to support the consolidation of certain types of procedural memories during REM, while delta oscillations during slow-wave sleep seem to promote declarative and procedural memories.
format	article
author	Drew B. Headley Denis Paré
author_facet	Drew B. Headley Denis Paré
author_sort	Drew B. Headley
title	Common oscillatory mechanisms across multiple memory systems
title_short	Common oscillatory mechanisms across multiple memory systems
title_full	Common oscillatory mechanisms across multiple memory systems
title_fullStr	Common oscillatory mechanisms across multiple memory systems
title_full_unstemmed	Common oscillatory mechanisms across multiple memory systems
title_sort	common oscillatory mechanisms across multiple memory systems
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/09dec7b5768e45e7bc926fa185b0062f
work_keys_str_mv	AT drewbheadley commonoscillatorymechanismsacrossmultiplememorysystems AT denispare commonoscillatorymechanismsacrossmultiplememorysystems
_version_	1718395146575282176

Common oscillatory mechanisms across multiple memory systems

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