Experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony

Abstract Bayesian models propose that multisensory integration depends on both sensory evidence (the likelihood) and priors indicating whether or not two inputs belong to the same event. The present study manipulated the prior for dynamic auditory and visual stimuli to co-occur and tested the predic...

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Autores principales:	Boukje Habets, Patrick Bruns, Brigitte Röder
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/84189243941d40ff94aa51fb61e67fea
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id	oai:doaj.org-article:84189243941d40ff94aa51fb61e67fea
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spelling	oai:doaj.org-article:84189243941d40ff94aa51fb61e67fea2021-12-02T15:05:46ZExperience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony10.1038/s41598-017-01252-y2045-2322https://doaj.org/article/84189243941d40ff94aa51fb61e67fea2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01252-yhttps://doaj.org/toc/2045-2322Abstract Bayesian models propose that multisensory integration depends on both sensory evidence (the likelihood) and priors indicating whether or not two inputs belong to the same event. The present study manipulated the prior for dynamic auditory and visual stimuli to co-occur and tested the predicted enhancement of multisensory binding as assessed with a simultaneity judgment task. In an initial learning phase participants were exposed to a subset of auditory-visual combinations. In the test phase the previously encountered audio-visual stimuli were presented together with new combinations of the auditory and visual stimuli from the learning phase, audio-visual stimuli containing one learned and one new sensory component, and audio-visual stimuli containing completely new auditory and visual material. Auditory-visual asynchrony was manipulated. A higher proportion of simultaneity judgements was observed for the learned cross-modal combinations than for new combinations of the same auditory and visual elements, as well as for all other conditions. This result suggests that prior exposure to certain auditory-visual combinations changed the expectation (i.e., the prior) that their elements belonged to the same event. As a result, multisensory binding became more likely despite unchanged sensory evidence of the auditory and visual elements.Boukje HabetsPatrick BrunsBrigitte RöderNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Boukje Habets Patrick Bruns Brigitte Röder Experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony
description	Abstract Bayesian models propose that multisensory integration depends on both sensory evidence (the likelihood) and priors indicating whether or not two inputs belong to the same event. The present study manipulated the prior for dynamic auditory and visual stimuli to co-occur and tested the predicted enhancement of multisensory binding as assessed with a simultaneity judgment task. In an initial learning phase participants were exposed to a subset of auditory-visual combinations. In the test phase the previously encountered audio-visual stimuli were presented together with new combinations of the auditory and visual stimuli from the learning phase, audio-visual stimuli containing one learned and one new sensory component, and audio-visual stimuli containing completely new auditory and visual material. Auditory-visual asynchrony was manipulated. A higher proportion of simultaneity judgements was observed for the learned cross-modal combinations than for new combinations of the same auditory and visual elements, as well as for all other conditions. This result suggests that prior exposure to certain auditory-visual combinations changed the expectation (i.e., the prior) that their elements belonged to the same event. As a result, multisensory binding became more likely despite unchanged sensory evidence of the auditory and visual elements.
format	article
author	Boukje Habets Patrick Bruns Brigitte Röder
author_facet	Boukje Habets Patrick Bruns Brigitte Röder
author_sort	Boukje Habets
title	Experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony
title_short	Experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony
title_full	Experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony
title_fullStr	Experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony
title_full_unstemmed	Experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony
title_sort	experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/84189243941d40ff94aa51fb61e67fea
work_keys_str_mv	AT boukjehabets experiencewithcrossmodalstatisticsreducesthesensitivityforaudiovisualtemporalasynchrony AT patrickbruns experiencewithcrossmodalstatisticsreducesthesensitivityforaudiovisualtemporalasynchrony AT brigitteroder experiencewithcrossmodalstatisticsreducesthesensitivityforaudiovisualtemporalasynchrony
_version_	1718388714383605760

Experience with crossmodal statistics reduces the sensitivity for audio-visual temporal asynchrony

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