Temporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.

In the electroencephalogram (EEG), early anticipatory processes are accompanied by a slow negative potential, the initial contingent negative variation (iCNV), occurring between 500 and 1500 ms after cue onset over prefrontal cortical regions in tasks with cue-target intervals of about 3 s or longer...

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Autores principales:	Thomas Fischer, Robert Langner, Kersten Diers, Burkhard Brocke, Niels Birbaumer
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2010
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c16dcd4a8e1f442abe43fd995ec67b1d
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id	oai:doaj.org-article:c16dcd4a8e1f442abe43fd995ec67b1d
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spelling	oai:doaj.org-article:c16dcd4a8e1f442abe43fd995ec67b1d2021-11-18T06:35:29ZTemporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.1932-620310.1371/journal.pone.0012514https://doaj.org/article/c16dcd4a8e1f442abe43fd995ec67b1d2010-09-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20824080/?tool=EBIhttps://doaj.org/toc/1932-6203In the electroencephalogram (EEG), early anticipatory processes are accompanied by a slow negative potential, the initial contingent negative variation (iCNV), occurring between 500 and 1500 ms after cue onset over prefrontal cortical regions in tasks with cue-target intervals of about 3 s or longer. However, the temporal sequence of the distributed cortical activity contributing to iCNV generation remains unclear. During iCNV generation, selectively enhanced low-beta activity has been reported. Here we studied the temporal order of activation foci in cortical regions assumed to underlie iCNV generation using source reconstruction of low-beta (13-18 Hz) activity. During the iCNV, elicited by a cued simple reaction-time task, low-beta power peaked first (750 ms after cue onset) in anterior frontal and limbic regions and last (140 ms later) in posterior areas. This activity occurred 3300 ms before target onset and provides evidence for the temporally ordered involvement of both cognitive-control and motor-preparation processes already at early stages during the preparation for speeded action.Thomas FischerRobert LangnerKersten DiersBurkhard BrockeNiels BirbaumerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 5, Iss 9 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thomas Fischer Robert Langner Kersten Diers Burkhard Brocke Niels Birbaumer Temporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.
description	In the electroencephalogram (EEG), early anticipatory processes are accompanied by a slow negative potential, the initial contingent negative variation (iCNV), occurring between 500 and 1500 ms after cue onset over prefrontal cortical regions in tasks with cue-target intervals of about 3 s or longer. However, the temporal sequence of the distributed cortical activity contributing to iCNV generation remains unclear. During iCNV generation, selectively enhanced low-beta activity has been reported. Here we studied the temporal order of activation foci in cortical regions assumed to underlie iCNV generation using source reconstruction of low-beta (13-18 Hz) activity. During the iCNV, elicited by a cued simple reaction-time task, low-beta power peaked first (750 ms after cue onset) in anterior frontal and limbic regions and last (140 ms later) in posterior areas. This activity occurred 3300 ms before target onset and provides evidence for the temporally ordered involvement of both cognitive-control and motor-preparation processes already at early stages during the preparation for speeded action.
format	article
author	Thomas Fischer Robert Langner Kersten Diers Burkhard Brocke Niels Birbaumer
author_facet	Thomas Fischer Robert Langner Kersten Diers Burkhard Brocke Niels Birbaumer
author_sort	Thomas Fischer
title	Temporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.
title_short	Temporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.
title_full	Temporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.
title_fullStr	Temporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.
title_full_unstemmed	Temporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.
title_sort	temporo-spatial dynamics of event-related eeg beta activity during the initial contingent negative variation.
publisher	Public Library of Science (PLoS)
publishDate	2010
url	https://doaj.org/article/c16dcd4a8e1f442abe43fd995ec67b1d
work_keys_str_mv	AT thomasfischer temporospatialdynamicsofeventrelatedeegbetaactivityduringtheinitialcontingentnegativevariation AT robertlangner temporospatialdynamicsofeventrelatedeegbetaactivityduringtheinitialcontingentnegativevariation AT kerstendiers temporospatialdynamicsofeventrelatedeegbetaactivityduringtheinitialcontingentnegativevariation AT burkhardbrocke temporospatialdynamicsofeventrelatedeegbetaactivityduringtheinitialcontingentnegativevariation AT nielsbirbaumer temporospatialdynamicsofeventrelatedeegbetaactivityduringtheinitialcontingentnegativevariation
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Temporo-spatial dynamics of event-related EEG beta activity during the initial contingent negative variation.

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