Blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression

Abstract Several previous studies have interfered with the observer’s facial mimicry during a variety of facial expression recognition tasks providing evidence in favor of the role of facial mimicry and sensorimotor activity in emotion processing. In this theoretical context, a particularly intrigui...

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Autores principales:	Thomas Quettier, Filippo Gambarota, Naotsugu Tsuchiya, Paola Sessa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/425b4babb06744f599f92e8f01bd69f7
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spelling	oai:doaj.org-article:425b4babb06744f599f92e8f01bd69f72021-12-02T14:35:40ZBlocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression10.1038/s41598-021-89355-52045-2322https://doaj.org/article/425b4babb06744f599f92e8f01bd69f72021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89355-5https://doaj.org/toc/2045-2322Abstract Several previous studies have interfered with the observer’s facial mimicry during a variety of facial expression recognition tasks providing evidence in favor of the role of facial mimicry and sensorimotor activity in emotion processing. In this theoretical context, a particularly intriguing facet has been neglected, namely whether blocking facial mimicry modulates conscious perception of facial expressions of emotions. To address this issue, we used a binocular rivalry paradigm, in which two dissimilar stimuli presented to the two eyes alternatingly dominate conscious perception. On each trial, female participants (N = 32) were exposed to a rivalrous pair of a neutral and a happy expression of the same individual through anaglyph glasses in two conditions: in one, they could freely use their facial mimicry, in the other they had to keep a chopstick between their lips, constraining the mobility of the zygomatic muscle and producing ‘noise’ for sensorimotor simulation. We found that blocking facial mimicry affected the perceptual dominance in terms of cumulative time favoring neutral faces, but it did not change the time before the first dominance was established. Taken together, our results open a door to future investigation of the intersection between sensorimotor simulation models and conscious perception of emotional facial expressions.Thomas QuettierFilippo GambarotaNaotsugu TsuchiyaPaola SessaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thomas Quettier Filippo Gambarota Naotsugu Tsuchiya Paola Sessa Blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression
description	Abstract Several previous studies have interfered with the observer’s facial mimicry during a variety of facial expression recognition tasks providing evidence in favor of the role of facial mimicry and sensorimotor activity in emotion processing. In this theoretical context, a particularly intriguing facet has been neglected, namely whether blocking facial mimicry modulates conscious perception of facial expressions of emotions. To address this issue, we used a binocular rivalry paradigm, in which two dissimilar stimuli presented to the two eyes alternatingly dominate conscious perception. On each trial, female participants (N = 32) were exposed to a rivalrous pair of a neutral and a happy expression of the same individual through anaglyph glasses in two conditions: in one, they could freely use their facial mimicry, in the other they had to keep a chopstick between their lips, constraining the mobility of the zygomatic muscle and producing ‘noise’ for sensorimotor simulation. We found that blocking facial mimicry affected the perceptual dominance in terms of cumulative time favoring neutral faces, but it did not change the time before the first dominance was established. Taken together, our results open a door to future investigation of the intersection between sensorimotor simulation models and conscious perception of emotional facial expressions.
format	article
author	Thomas Quettier Filippo Gambarota Naotsugu Tsuchiya Paola Sessa
author_facet	Thomas Quettier Filippo Gambarota Naotsugu Tsuchiya Paola Sessa
author_sort	Thomas Quettier
title	Blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression
title_short	Blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression
title_full	Blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression
title_fullStr	Blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression
title_full_unstemmed	Blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression
title_sort	blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/425b4babb06744f599f92e8f01bd69f7
work_keys_str_mv	AT thomasquettier blockingfacialmimicryduringbinocularrivalrymodulatesvisualawarenessoffaceswithaneutralexpression AT filippogambarota blockingfacialmimicryduringbinocularrivalrymodulatesvisualawarenessoffaceswithaneutralexpression AT naotsugutsuchiya blockingfacialmimicryduringbinocularrivalrymodulatesvisualawarenessoffaceswithaneutralexpression AT paolasessa blockingfacialmimicryduringbinocularrivalrymodulatesvisualawarenessoffaceswithaneutralexpression
_version_	1718391068047704064

Blocking facial mimicry during binocular rivalry modulates visual awareness of faces with a neutral expression

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