MEG evidence for dynamic amygdala modulations by gaze and facial emotions.

<h4>Background</h4>Amygdala is a key brain region for face perception. While the role of amygdala in the perception of facial emotion and gaze has been extensively highlighted with fMRI, the unfolding in time of amydgala responses to emotional versus neutral faces with different gaze dir...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Thibaud Dumas, Stéphanie Dubal, Yohan Attal, Marie Chupin, Roland Jouvent, Shasha Morel, Nathalie George
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/22d3a9eafd2243df8489fa0b2468960d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:22d3a9eafd2243df8489fa0b2468960d
record_format	dspace
spelling	oai:doaj.org-article:22d3a9eafd2243df8489fa0b2468960d2021-11-18T08:55:59ZMEG evidence for dynamic amygdala modulations by gaze and facial emotions.1932-620310.1371/journal.pone.0074145https://doaj.org/article/22d3a9eafd2243df8489fa0b2468960d2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24040190/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Amygdala is a key brain region for face perception. While the role of amygdala in the perception of facial emotion and gaze has been extensively highlighted with fMRI, the unfolding in time of amydgala responses to emotional versus neutral faces with different gaze directions is scarcely known.<h4>Methodology/principal findings</h4>Here we addressed this question in healthy subjects using MEG combined with an original source imaging method based on individual amygdala volume segmentation and the localization of sources in the amygdala volume. We found an early peak of amygdala activity that was enhanced for fearful relative to neutral faces between 130 and 170 ms. The effect of emotion was again significant in a later time range (310-350 ms). Moreover, the amygdala response was greater for direct relative averted gaze between 190 and 350 ms, and this effect was selective of fearful faces in the right amygdala.<h4>Conclusion</h4>Altogether, our results show that the amygdala is involved in the processing and integration of emotion and gaze cues from faces in different time ranges, thus underlining its role in multiple stages of face perception.Thibaud DumasStéphanie DubalYohan AttalMarie ChupinRoland JouventShasha MorelNathalie GeorgePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 9, p e74145 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thibaud Dumas Stéphanie Dubal Yohan Attal Marie Chupin Roland Jouvent Shasha Morel Nathalie George MEG evidence for dynamic amygdala modulations by gaze and facial emotions.
description	<h4>Background</h4>Amygdala is a key brain region for face perception. While the role of amygdala in the perception of facial emotion and gaze has been extensively highlighted with fMRI, the unfolding in time of amydgala responses to emotional versus neutral faces with different gaze directions is scarcely known.<h4>Methodology/principal findings</h4>Here we addressed this question in healthy subjects using MEG combined with an original source imaging method based on individual amygdala volume segmentation and the localization of sources in the amygdala volume. We found an early peak of amygdala activity that was enhanced for fearful relative to neutral faces between 130 and 170 ms. The effect of emotion was again significant in a later time range (310-350 ms). Moreover, the amygdala response was greater for direct relative averted gaze between 190 and 350 ms, and this effect was selective of fearful faces in the right amygdala.<h4>Conclusion</h4>Altogether, our results show that the amygdala is involved in the processing and integration of emotion and gaze cues from faces in different time ranges, thus underlining its role in multiple stages of face perception.
format	article
author	Thibaud Dumas Stéphanie Dubal Yohan Attal Marie Chupin Roland Jouvent Shasha Morel Nathalie George
author_facet	Thibaud Dumas Stéphanie Dubal Yohan Attal Marie Chupin Roland Jouvent Shasha Morel Nathalie George
author_sort	Thibaud Dumas
title	MEG evidence for dynamic amygdala modulations by gaze and facial emotions.
title_short	MEG evidence for dynamic amygdala modulations by gaze and facial emotions.
title_full	MEG evidence for dynamic amygdala modulations by gaze and facial emotions.
title_fullStr	MEG evidence for dynamic amygdala modulations by gaze and facial emotions.
title_full_unstemmed	MEG evidence for dynamic amygdala modulations by gaze and facial emotions.
title_sort	meg evidence for dynamic amygdala modulations by gaze and facial emotions.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/22d3a9eafd2243df8489fa0b2468960d
work_keys_str_mv	AT thibauddumas megevidencefordynamicamygdalamodulationsbygazeandfacialemotions AT stephaniedubal megevidencefordynamicamygdalamodulationsbygazeandfacialemotions AT yohanattal megevidencefordynamicamygdalamodulationsbygazeandfacialemotions AT mariechupin megevidencefordynamicamygdalamodulationsbygazeandfacialemotions AT rolandjouvent megevidencefordynamicamygdalamodulationsbygazeandfacialemotions AT shashamorel megevidencefordynamicamygdalamodulationsbygazeandfacialemotions AT nathaliegeorge megevidencefordynamicamygdalamodulationsbygazeandfacialemotions
_version_	1718421129589161984

MEG evidence for dynamic amygdala modulations by gaze and facial emotions.

Ejemplares similares