Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.

In dynamic multisensory environments, the perceptual system corrects for discrepancies arising between modalities. For instance, in the ventriloquism aftereffect (VAE), spatial disparities introduced between visual and auditory stimuli lead to a perceptual recalibration of auditory space. Previous r...

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Autores principales:	David Mark Watson, Michael A Akeroyd, Neil W Roach, Ben S Webb
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0e28e1fa26054e3499b08fb1c7821bde
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id	oai:doaj.org-article:0e28e1fa26054e3499b08fb1c7821bde
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spelling	oai:doaj.org-article:0e28e1fa26054e3499b08fb1c7821bde2021-11-25T06:19:12ZMultiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.1932-620310.1371/journal.pone.0251827https://doaj.org/article/0e28e1fa26054e3499b08fb1c7821bde2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251827https://doaj.org/toc/1932-6203In dynamic multisensory environments, the perceptual system corrects for discrepancies arising between modalities. For instance, in the ventriloquism aftereffect (VAE), spatial disparities introduced between visual and auditory stimuli lead to a perceptual recalibration of auditory space. Previous research has shown that the VAE is underpinned by multiple recalibration mechanisms tuned to different timescales, however it remains unclear whether these mechanisms use common or distinct spatial reference frames. Here we asked whether the VAE operates in eye- or head-centred reference frames across a range of adaptation timescales, from a few seconds to a few minutes. We developed a novel paradigm for selectively manipulating the contribution of eye- versus head-centred visual signals to the VAE by manipulating auditory locations relative to either the head orientation or the point of fixation. Consistent with previous research, we found both eye- and head-centred frames contributed to the VAE across all timescales. However, we found no evidence for an interaction between spatial reference frames and adaptation duration. Our results indicate that the VAE is underpinned by multiple spatial reference frames that are similarly leveraged by the underlying time-sensitive mechanisms.David Mark WatsonMichael A AkeroydNeil W RoachBen S WebbPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251827 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q David Mark Watson Michael A Akeroyd Neil W Roach Ben S Webb Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.
description	In dynamic multisensory environments, the perceptual system corrects for discrepancies arising between modalities. For instance, in the ventriloquism aftereffect (VAE), spatial disparities introduced between visual and auditory stimuli lead to a perceptual recalibration of auditory space. Previous research has shown that the VAE is underpinned by multiple recalibration mechanisms tuned to different timescales, however it remains unclear whether these mechanisms use common or distinct spatial reference frames. Here we asked whether the VAE operates in eye- or head-centred reference frames across a range of adaptation timescales, from a few seconds to a few minutes. We developed a novel paradigm for selectively manipulating the contribution of eye- versus head-centred visual signals to the VAE by manipulating auditory locations relative to either the head orientation or the point of fixation. Consistent with previous research, we found both eye- and head-centred frames contributed to the VAE across all timescales. However, we found no evidence for an interaction between spatial reference frames and adaptation duration. Our results indicate that the VAE is underpinned by multiple spatial reference frames that are similarly leveraged by the underlying time-sensitive mechanisms.
format	article
author	David Mark Watson Michael A Akeroyd Neil W Roach Ben S Webb
author_facet	David Mark Watson Michael A Akeroyd Neil W Roach Ben S Webb
author_sort	David Mark Watson
title	Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.
title_short	Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.
title_full	Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.
title_fullStr	Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.
title_full_unstemmed	Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.
title_sort	multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/0e28e1fa26054e3499b08fb1c7821bde
work_keys_str_mv	AT davidmarkwatson multiplespatialreferenceframesunderpinperceptualrecalibrationtoaudiovisualdiscrepancies AT michaelaakeroyd multiplespatialreferenceframesunderpinperceptualrecalibrationtoaudiovisualdiscrepancies AT neilwroach multiplespatialreferenceframesunderpinperceptualrecalibrationtoaudiovisualdiscrepancies AT benswebb multiplespatialreferenceframesunderpinperceptualrecalibrationtoaudiovisualdiscrepancies
_version_	1718413905141694464

Multiple spatial reference frames underpin perceptual recalibration to audio-visual discrepancies.

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