Emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.

The purpose of current study is to reveal spatiotemporal features of oscillatory EEG activities in response to emotional arousal induced by emotional video stimuli, and to find the characteristics of cortical activities showing significant difference according to arousal levels. The EEGs recorded du...

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Autores principales:	Hyun Kim, Pukyeong Seo, Jeong Woo Choi, Kyung Hwan Kim
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7144f211c91a42a38c111f92c3f29484
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id	oai:doaj.org-article:7144f211c91a42a38c111f92c3f29484
record_format	dspace
spelling	oai:doaj.org-article:7144f211c91a42a38c111f92c3f294842021-12-02T20:06:31ZEmotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.1932-620310.1371/journal.pone.0255032https://doaj.org/article/7144f211c91a42a38c111f92c3f294842021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255032https://doaj.org/toc/1932-6203The purpose of current study is to reveal spatiotemporal features of oscillatory EEG activities in response to emotional arousal induced by emotional video stimuli, and to find the characteristics of cortical activities showing significant difference according to arousal levels. The EEGs recorded during watching affective video clips were transformed to cortical current density time-series, and then, cluster-based permutation test was applied to determine the spatiotemporal origins of alpha- and beta-band activities showing significant difference between high and low arousal levels. We found stronger desynchronization of alpha-band activities due to higher arousal in visual areas, which may be due to stronger activation for sensory information processing for the highly arousing video stimuli. In precentral and superior parietal regions, the stronger desynchronization in alpha-and low beta-bands was observed for the high arousal stimuli. This is expected to reflect enhanced mirror neuron system activities, which is involved in understanding the intention of other's action. Similar changes according to arousal level were found also in inter-regional phase synchronization in alpha- and beta-bands.Hyun KimPukyeong SeoJeong Woo ChoiKyung Hwan KimPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0255032 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hyun Kim Pukyeong Seo Jeong Woo Choi Kyung Hwan Kim Emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.
description	The purpose of current study is to reveal spatiotemporal features of oscillatory EEG activities in response to emotional arousal induced by emotional video stimuli, and to find the characteristics of cortical activities showing significant difference according to arousal levels. The EEGs recorded during watching affective video clips were transformed to cortical current density time-series, and then, cluster-based permutation test was applied to determine the spatiotemporal origins of alpha- and beta-band activities showing significant difference between high and low arousal levels. We found stronger desynchronization of alpha-band activities due to higher arousal in visual areas, which may be due to stronger activation for sensory information processing for the highly arousing video stimuli. In precentral and superior parietal regions, the stronger desynchronization in alpha-and low beta-bands was observed for the high arousal stimuli. This is expected to reflect enhanced mirror neuron system activities, which is involved in understanding the intention of other's action. Similar changes according to arousal level were found also in inter-regional phase synchronization in alpha- and beta-bands.
format	article
author	Hyun Kim Pukyeong Seo Jeong Woo Choi Kyung Hwan Kim
author_facet	Hyun Kim Pukyeong Seo Jeong Woo Choi Kyung Hwan Kim
author_sort	Hyun Kim
title	Emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.
title_short	Emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.
title_full	Emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.
title_fullStr	Emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.
title_full_unstemmed	Emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.
title_sort	emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/7144f211c91a42a38c111f92c3f29484
work_keys_str_mv	AT hyunkim emotionalarousalduetovideostimulireduceslocalandinterregionalsynchronizationofoscillatorycorticalactivitiesinalphaandbetabands AT pukyeongseo emotionalarousalduetovideostimulireduceslocalandinterregionalsynchronizationofoscillatorycorticalactivitiesinalphaandbetabands AT jeongwoochoi emotionalarousalduetovideostimulireduceslocalandinterregionalsynchronizationofoscillatorycorticalactivitiesinalphaandbetabands AT kyunghwankim emotionalarousalduetovideostimulireduceslocalandinterregionalsynchronizationofoscillatorycorticalactivitiesinalphaandbetabands
_version_	1718375365710184448

Emotional arousal due to video stimuli reduces local and inter-regional synchronization of oscillatory cortical activities in alpha- and beta-bands.

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