Pupil dilation reflects the authenticity of received nonverbal vocalizations

Abstract The ability to infer the authenticity of other’s emotional expressions is a social cognitive process taking place in all human interactions. Although the neurocognitive correlates of authenticity recognition have been probed, its potential recruitment of the peripheral autonomic nervous sys...

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Autores principales:	Gonçalo Cosme, Pedro J. Rosa, César F. Lima, Vânia Tavares, Sophie Scott, Sinead Chen, Thomas D. W. Wilcockson, Trevor J. Crawford, Diana Prata
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/27c4b1c0aa224edb9788b220f396c401
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spelling	oai:doaj.org-article:27c4b1c0aa224edb9788b220f396c4012021-12-02T13:30:10ZPupil dilation reflects the authenticity of received nonverbal vocalizations10.1038/s41598-021-83070-x2045-2322https://doaj.org/article/27c4b1c0aa224edb9788b220f396c4012021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83070-xhttps://doaj.org/toc/2045-2322Abstract The ability to infer the authenticity of other’s emotional expressions is a social cognitive process taking place in all human interactions. Although the neurocognitive correlates of authenticity recognition have been probed, its potential recruitment of the peripheral autonomic nervous system is not known. In this work, we asked participants to rate the authenticity of authentic and acted laughs and cries, while simultaneously recording their pupil size, taken as proxy of cognitive effort and arousal. We report, for the first time, that acted laughs elicited higher pupil dilation than authentic ones and, reversely, authentic cries elicited higher pupil dilation than acted ones. We tentatively suggest the lack of authenticity in others’ laughs elicits increased pupil dilation through demanding higher cognitive effort; and that, reversely, authenticity in cries increases pupil dilation, through eliciting higher emotional arousal. We also show authentic vocalizations and laughs (i.e. main effects of authenticity and emotion) to be perceived as more authentic, arousing and contagious than acted vocalizations and cries, respectively. In conclusion, we show new evidence that the recognition of emotional authenticity can be manifested at the level of the autonomic nervous system in humans. Notwithstanding, given its novelty, further independent research is warranted to ascertain its psychological meaning.Gonçalo CosmePedro J. RosaCésar F. LimaVânia TavaresSophie ScottSinead ChenThomas D. W. WilcocksonTrevor J. CrawfordDiana PrataNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gonçalo Cosme Pedro J. Rosa César F. Lima Vânia Tavares Sophie Scott Sinead Chen Thomas D. W. Wilcockson Trevor J. Crawford Diana Prata Pupil dilation reflects the authenticity of received nonverbal vocalizations
description	Abstract The ability to infer the authenticity of other’s emotional expressions is a social cognitive process taking place in all human interactions. Although the neurocognitive correlates of authenticity recognition have been probed, its potential recruitment of the peripheral autonomic nervous system is not known. In this work, we asked participants to rate the authenticity of authentic and acted laughs and cries, while simultaneously recording their pupil size, taken as proxy of cognitive effort and arousal. We report, for the first time, that acted laughs elicited higher pupil dilation than authentic ones and, reversely, authentic cries elicited higher pupil dilation than acted ones. We tentatively suggest the lack of authenticity in others’ laughs elicits increased pupil dilation through demanding higher cognitive effort; and that, reversely, authenticity in cries increases pupil dilation, through eliciting higher emotional arousal. We also show authentic vocalizations and laughs (i.e. main effects of authenticity and emotion) to be perceived as more authentic, arousing and contagious than acted vocalizations and cries, respectively. In conclusion, we show new evidence that the recognition of emotional authenticity can be manifested at the level of the autonomic nervous system in humans. Notwithstanding, given its novelty, further independent research is warranted to ascertain its psychological meaning.
format	article
author	Gonçalo Cosme Pedro J. Rosa César F. Lima Vânia Tavares Sophie Scott Sinead Chen Thomas D. W. Wilcockson Trevor J. Crawford Diana Prata
author_facet	Gonçalo Cosme Pedro J. Rosa César F. Lima Vânia Tavares Sophie Scott Sinead Chen Thomas D. W. Wilcockson Trevor J. Crawford Diana Prata
author_sort	Gonçalo Cosme
title	Pupil dilation reflects the authenticity of received nonverbal vocalizations
title_short	Pupil dilation reflects the authenticity of received nonverbal vocalizations
title_full	Pupil dilation reflects the authenticity of received nonverbal vocalizations
title_fullStr	Pupil dilation reflects the authenticity of received nonverbal vocalizations
title_full_unstemmed	Pupil dilation reflects the authenticity of received nonverbal vocalizations
title_sort	pupil dilation reflects the authenticity of received nonverbal vocalizations
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/27c4b1c0aa224edb9788b220f396c401
work_keys_str_mv	AT goncalocosme pupildilationreflectstheauthenticityofreceivednonverbalvocalizations AT pedrojrosa pupildilationreflectstheauthenticityofreceivednonverbalvocalizations AT cesarflima pupildilationreflectstheauthenticityofreceivednonverbalvocalizations AT vaniatavares pupildilationreflectstheauthenticityofreceivednonverbalvocalizations AT sophiescott pupildilationreflectstheauthenticityofreceivednonverbalvocalizations AT sineadchen pupildilationreflectstheauthenticityofreceivednonverbalvocalizations AT thomasdwwilcockson pupildilationreflectstheauthenticityofreceivednonverbalvocalizations AT trevorjcrawford pupildilationreflectstheauthenticityofreceivednonverbalvocalizations AT dianaprata pupildilationreflectstheauthenticityofreceivednonverbalvocalizations
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Pupil dilation reflects the authenticity of received nonverbal vocalizations

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