Transcranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.

Previously the application of a weak electric anodal current oscillating with a frequency of the sleep slow oscillation (∼0.75 Hz) during non-rapid eye movement sleep (NonREM) sleep boosted endogenous slow oscillation activity and enhanced sleep-associated memory consolidation. The slow oscillations...

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Autores principales:	Lisa Marshall, Roumen Kirov, Julian Brade, Matthias Mölle, Jan Born
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c8447659d39d4afeb2ccc8d8b1e8174d
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spelling	oai:doaj.org-article:c8447659d39d4afeb2ccc8d8b1e8174d2021-11-18T06:58:50ZTranscranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.1932-620310.1371/journal.pone.0016905https://doaj.org/article/c8447659d39d4afeb2ccc8d8b1e8174d2011-02-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21340034/?tool=EBIhttps://doaj.org/toc/1932-6203Previously the application of a weak electric anodal current oscillating with a frequency of the sleep slow oscillation (∼0.75 Hz) during non-rapid eye movement sleep (NonREM) sleep boosted endogenous slow oscillation activity and enhanced sleep-associated memory consolidation. The slow oscillations occurring during NonREM sleep and theta oscillations present during REM sleep have been considered of critical relevance for memory formation. Here transcranial direct current stimulation (tDCS) oscillating at 5 Hz, i.e., within the theta frequency range (theta-tDCS) is applied during NonREM and REM sleep. Theta-tDCS during NonREM sleep produced a global decrease in slow oscillatory activity conjoint with a local reduction of frontal slow EEG spindle power (8-12 Hz) and a decrement in consolidation of declarative memory, underlining the relevance of these cortical oscillations for sleep-dependent memory consolidation. In contrast, during REM sleep theta-tDCS appears to increase global gamma (25-45 Hz) activity, indicating a clear brain state-dependency of theta-tDCS. More generally, results demonstrate the suitability of oscillating-tDCS as a tool to analyze functions of endogenous EEG rhythms and underlying endogenous electric fields as well as the interactions between EEG rhythms of different frequencies.Lisa MarshallRoumen KirovJulian BradeMatthias MölleJan BornPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 2, p e16905 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lisa Marshall Roumen Kirov Julian Brade Matthias Mölle Jan Born Transcranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.
description	Previously the application of a weak electric anodal current oscillating with a frequency of the sleep slow oscillation (∼0.75 Hz) during non-rapid eye movement sleep (NonREM) sleep boosted endogenous slow oscillation activity and enhanced sleep-associated memory consolidation. The slow oscillations occurring during NonREM sleep and theta oscillations present during REM sleep have been considered of critical relevance for memory formation. Here transcranial direct current stimulation (tDCS) oscillating at 5 Hz, i.e., within the theta frequency range (theta-tDCS) is applied during NonREM and REM sleep. Theta-tDCS during NonREM sleep produced a global decrease in slow oscillatory activity conjoint with a local reduction of frontal slow EEG spindle power (8-12 Hz) and a decrement in consolidation of declarative memory, underlining the relevance of these cortical oscillations for sleep-dependent memory consolidation. In contrast, during REM sleep theta-tDCS appears to increase global gamma (25-45 Hz) activity, indicating a clear brain state-dependency of theta-tDCS. More generally, results demonstrate the suitability of oscillating-tDCS as a tool to analyze functions of endogenous EEG rhythms and underlying endogenous electric fields as well as the interactions between EEG rhythms of different frequencies.
format	article
author	Lisa Marshall Roumen Kirov Julian Brade Matthias Mölle Jan Born
author_facet	Lisa Marshall Roumen Kirov Julian Brade Matthias Mölle Jan Born
author_sort	Lisa Marshall
title	Transcranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.
title_short	Transcranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.
title_full	Transcranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.
title_fullStr	Transcranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.
title_full_unstemmed	Transcranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.
title_sort	transcranial electrical currents to probe eeg brain rhythms and memory consolidation during sleep in humans.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/c8447659d39d4afeb2ccc8d8b1e8174d
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_version_	1718424132708728832

Transcranial electrical currents to probe EEG brain rhythms and memory consolidation during sleep in humans.

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