Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.

Speech production gives rise to distinct auditory and somatosensory feedback signals which are dynamically integrated to enable online monitoring and error correction, though it remains unclear how the sensorimotor system supports the integration of these multimodal signals. Capitalizing on the pari...

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Autor principal:	David Jenson
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/58895dbd22c64902b885cb992238b88a
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spelling	oai:doaj.org-article:58895dbd22c64902b885cb992238b88a2021-12-02T20:13:46ZAudiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.1932-620310.1371/journal.pone.0258335https://doaj.org/article/58895dbd22c64902b885cb992238b88a2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0258335https://doaj.org/toc/1932-6203Speech production gives rise to distinct auditory and somatosensory feedback signals which are dynamically integrated to enable online monitoring and error correction, though it remains unclear how the sensorimotor system supports the integration of these multimodal signals. Capitalizing on the parity of sensorimotor processes supporting perception and production, the current study employed the McGurk paradigm to induce multimodal sensory congruence/incongruence. EEG data from a cohort of 39 typical speakers were decomposed with independent component analysis to identify bilateral mu rhythms; indices of sensorimotor activity. Subsequent time-frequency analyses revealed bilateral patterns of event related desynchronization (ERD) across alpha and beta frequency ranges over the time course of perceptual events. Right mu activity was characterized by reduced ERD during all cases of audiovisual incongruence, while left mu activity was attenuated and protracted in McGurk trials eliciting sensory fusion. Results were interpreted to suggest distinct hemispheric contributions, with right hemisphere mu activity supporting a coarse incongruence detection process and left hemisphere mu activity reflecting a more granular level of analysis including phonological identification and incongruence resolution. Findings are also considered in regard to incongruence detection and resolution processes during production.David JensonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10, p e0258335 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q David Jenson Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.
description	Speech production gives rise to distinct auditory and somatosensory feedback signals which are dynamically integrated to enable online monitoring and error correction, though it remains unclear how the sensorimotor system supports the integration of these multimodal signals. Capitalizing on the parity of sensorimotor processes supporting perception and production, the current study employed the McGurk paradigm to induce multimodal sensory congruence/incongruence. EEG data from a cohort of 39 typical speakers were decomposed with independent component analysis to identify bilateral mu rhythms; indices of sensorimotor activity. Subsequent time-frequency analyses revealed bilateral patterns of event related desynchronization (ERD) across alpha and beta frequency ranges over the time course of perceptual events. Right mu activity was characterized by reduced ERD during all cases of audiovisual incongruence, while left mu activity was attenuated and protracted in McGurk trials eliciting sensory fusion. Results were interpreted to suggest distinct hemispheric contributions, with right hemisphere mu activity supporting a coarse incongruence detection process and left hemisphere mu activity reflecting a more granular level of analysis including phonological identification and incongruence resolution. Findings are also considered in regard to incongruence detection and resolution processes during production.
format	article
author	David Jenson
author_facet	David Jenson
author_sort	David Jenson
title	Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.
title_short	Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.
title_full	Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.
title_fullStr	Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.
title_full_unstemmed	Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.
title_sort	audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: potential applications to production.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/58895dbd22c64902b885cb992238b88a
work_keys_str_mv	AT davidjenson audiovisualincongruencedifferentiallyimpactsleftandrighthemispheresensorimotoroscillationspotentialapplicationstoproduction
_version_	1718374704999301120

Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production.

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