Single Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech

Abstract Asynchronous arrival of audiovisual information at the peripheral sensory organs is a ubiquitous property of signals in the natural environment due to differences in the propagation time of light and sound. As these cues are constantly changing their distance from the observer, rapid adapta...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	David M. Simon, Aaron R. Nidiffer, Mark T. Wallace
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b27f8d05a2534eb3b9449b1635f96415
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b27f8d05a2534eb3b9449b1635f96415
record_format	dspace
spelling	oai:doaj.org-article:b27f8d05a2534eb3b9449b1635f964152021-12-02T15:08:27ZSingle Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech10.1038/s41598-018-30414-92045-2322https://doaj.org/article/b27f8d05a2534eb3b9449b1635f964152018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30414-9https://doaj.org/toc/2045-2322Abstract Asynchronous arrival of audiovisual information at the peripheral sensory organs is a ubiquitous property of signals in the natural environment due to differences in the propagation time of light and sound. As these cues are constantly changing their distance from the observer, rapid adaptation to asynchronies is crucial for their appropriate integration. We investigated the neural basis of rapid recalibration to asynchronous audiovisual speech in humans using a combination of psychophysics, drift diffusion modeling, and electroencephalography (EEG). Consistent with previous reports, we found that perception of audiovisual temporal synchrony depends on the temporal ordering of the previous trial. Drift diffusion modelling indicated that this recalibration effect is well accounted for by changes in the rate of evidence accumulation (i.e. drift rate). Neural responses as indexed via evoked potentials were similarly found to vary based on the temporal ordering of the previous trial. Within and across subject correlations indicated that the observed changes in drift rate and the modulation of evoked potential magnitude were related. These results indicate that the rate and direction of evidence accumulation are affected by immediate sensory history and that these changes contribute to single trial recalibration to audiovisual temporal asynchrony.David M. SimonAaron R. NidifferMark T. WallaceNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-14 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q David M. Simon Aaron R. Nidiffer Mark T. Wallace Single Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech
description	Abstract Asynchronous arrival of audiovisual information at the peripheral sensory organs is a ubiquitous property of signals in the natural environment due to differences in the propagation time of light and sound. As these cues are constantly changing their distance from the observer, rapid adaptation to asynchronies is crucial for their appropriate integration. We investigated the neural basis of rapid recalibration to asynchronous audiovisual speech in humans using a combination of psychophysics, drift diffusion modeling, and electroencephalography (EEG). Consistent with previous reports, we found that perception of audiovisual temporal synchrony depends on the temporal ordering of the previous trial. Drift diffusion modelling indicated that this recalibration effect is well accounted for by changes in the rate of evidence accumulation (i.e. drift rate). Neural responses as indexed via evoked potentials were similarly found to vary based on the temporal ordering of the previous trial. Within and across subject correlations indicated that the observed changes in drift rate and the modulation of evoked potential magnitude were related. These results indicate that the rate and direction of evidence accumulation are affected by immediate sensory history and that these changes contribute to single trial recalibration to audiovisual temporal asynchrony.
format	article
author	David M. Simon Aaron R. Nidiffer Mark T. Wallace
author_facet	David M. Simon Aaron R. Nidiffer Mark T. Wallace
author_sort	David M. Simon
title	Single Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech
title_short	Single Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech
title_full	Single Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech
title_fullStr	Single Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech
title_full_unstemmed	Single Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech
title_sort	single trial plasticity in evidence accumulation underlies rapid recalibration to asynchronous audiovisual speech
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/b27f8d05a2534eb3b9449b1635f96415
work_keys_str_mv	AT davidmsimon singletrialplasticityinevidenceaccumulationunderliesrapidrecalibrationtoasynchronousaudiovisualspeech AT aaronrnidiffer singletrialplasticityinevidenceaccumulationunderliesrapidrecalibrationtoasynchronousaudiovisualspeech AT marktwallace singletrialplasticityinevidenceaccumulationunderliesrapidrecalibrationtoasynchronousaudiovisualspeech
_version_	1718388144822288384

Single Trial Plasticity in Evidence Accumulation Underlies Rapid Recalibration to Asynchronous Audiovisual Speech

Ejemplares similares