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Acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries

Frontal EEG alpha band asymmetries have been linked to affective processing in healthy individuals and affective disorders. As stress provides a strong source of negative affect, the present study investigated how acute stress affects frontal EEG alpha asymmetries. Continuous EEG data were acquired...

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Detalles Bibliográficos
Autores principales: Berretz, Gesa, Packheiser, Julian, Wolf, Oliver T., Ocklenburg, Sebastian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8850739/
https://www.ncbi.nlm.nih.gov/pubmed/35198894
http://dx.doi.org/10.1016/j.isci.2022.103841
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author Berretz, Gesa
Packheiser, Julian
Wolf, Oliver T.
Ocklenburg, Sebastian
author_facet Berretz, Gesa
Packheiser, Julian
Wolf, Oliver T.
Ocklenburg, Sebastian
author_sort Berretz, Gesa
collection PubMed
description Frontal EEG alpha band asymmetries have been linked to affective processing in healthy individuals and affective disorders. As stress provides a strong source of negative affect, the present study investigated how acute stress affects frontal EEG alpha asymmetries. Continuous EEG data were acquired from 51 healthy adult participants during stress induction with the Trier Social Stress Test. EEG data were also collected during a non-stressful control condition. Furthermore, EEG resting state data were acquired after both conditions. Under stress, participants showed stronger left hemispheric activation over frontal electrodes as well as reduced left-hemispheric activation over occipital electrodes compared to the control condition. Our results are in line with predictions of the asymmetric inhibition model which postulates that the left prefrontal cortex inhibits negative distractors. Moreover, the results support the capability model of emotional regulation which states that frontal asymmetries during emotional challenge are more pronounced compared to asymmetries during rest.
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spelling pubmed-88507392022-02-22 Acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries Berretz, Gesa Packheiser, Julian Wolf, Oliver T. Ocklenburg, Sebastian iScience Article Frontal EEG alpha band asymmetries have been linked to affective processing in healthy individuals and affective disorders. As stress provides a strong source of negative affect, the present study investigated how acute stress affects frontal EEG alpha asymmetries. Continuous EEG data were acquired from 51 healthy adult participants during stress induction with the Trier Social Stress Test. EEG data were also collected during a non-stressful control condition. Furthermore, EEG resting state data were acquired after both conditions. Under stress, participants showed stronger left hemispheric activation over frontal electrodes as well as reduced left-hemispheric activation over occipital electrodes compared to the control condition. Our results are in line with predictions of the asymmetric inhibition model which postulates that the left prefrontal cortex inhibits negative distractors. Moreover, the results support the capability model of emotional regulation which states that frontal asymmetries during emotional challenge are more pronounced compared to asymmetries during rest. Elsevier 2022-02-01 /pmc/articles/PMC8850739/ /pubmed/35198894 http://dx.doi.org/10.1016/j.isci.2022.103841 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Berretz, Gesa
Packheiser, Julian
Wolf, Oliver T.
Ocklenburg, Sebastian
Acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries
title Acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries
title_full Acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries
title_fullStr Acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries
title_full_unstemmed Acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries
title_short Acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries
title_sort acute stress increases left hemispheric activity measured via changes in frontal alpha asymmetries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8850739/
https://www.ncbi.nlm.nih.gov/pubmed/35198894
http://dx.doi.org/10.1016/j.isci.2022.103841
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