Dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.

<h4>Background</h4>Recent research has addressed the suppression of cortical sensory responses to altered auditory feedback that occurs at utterance onset regarding speech. However, there is reason to assume that the mechanisms underlying sensorimotor processing at mid-utterance are diff...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Zhaocong Chen, Jeffery A Jones, Peng Liu, Weifeng Li, Dongfeng Huang, Hanjun Liu
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e9e8f651d9ab4f71bef34941f7428acf
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e9e8f651d9ab4f71bef34941f7428acf
record_format	dspace
spelling	oai:doaj.org-article:e9e8f651d9ab4f71bef34941f7428acf2021-11-18T07:51:32ZDynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.1932-620310.1371/journal.pone.0060039https://doaj.org/article/e9e8f651d9ab4f71bef34941f7428acf2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23555876/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Recent research has addressed the suppression of cortical sensory responses to altered auditory feedback that occurs at utterance onset regarding speech. However, there is reason to assume that the mechanisms underlying sensorimotor processing at mid-utterance are different than those involved in sensorimotor control at utterance onset. The present study attempted to examine the dynamics of event-related potentials (ERPs) to different acoustic versions of auditory feedback at mid-utterance.<h4>Methodology/principal findings</h4>Subjects produced a vowel sound while hearing their pitch-shifted voice (100 cents), a sum of their vocalization and pure tones, or a sum of their vocalization and white noise at mid-utterance via headphones. Subjects also passively listened to playback of what they heard during active vocalization. Cortical ERPs were recorded in response to different acoustic versions of feedback changes during both active vocalization and passive listening. The results showed that, relative to passive listening, active vocalization yielded enhanced P2 responses to the 100 cents pitch shifts, whereas suppression effects of P2 responses were observed when voice auditory feedback was distorted by pure tones or white noise.<h4>Conclusion/significance</h4>The present findings, for the first time, demonstrate a dynamic modulation of cortical activity as a function of the quality of acoustic feedback at mid-utterance, suggesting that auditory cortical responses can be enhanced or suppressed to distinguish self-produced speech from externally-produced sounds.Zhaocong ChenJeffery A JonesPeng LiuWeifeng LiDongfeng HuangHanjun LiuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 3, p e60039 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhaocong Chen Jeffery A Jones Peng Liu Weifeng Li Dongfeng Huang Hanjun Liu Dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.
description	<h4>Background</h4>Recent research has addressed the suppression of cortical sensory responses to altered auditory feedback that occurs at utterance onset regarding speech. However, there is reason to assume that the mechanisms underlying sensorimotor processing at mid-utterance are different than those involved in sensorimotor control at utterance onset. The present study attempted to examine the dynamics of event-related potentials (ERPs) to different acoustic versions of auditory feedback at mid-utterance.<h4>Methodology/principal findings</h4>Subjects produced a vowel sound while hearing their pitch-shifted voice (100 cents), a sum of their vocalization and pure tones, or a sum of their vocalization and white noise at mid-utterance via headphones. Subjects also passively listened to playback of what they heard during active vocalization. Cortical ERPs were recorded in response to different acoustic versions of feedback changes during both active vocalization and passive listening. The results showed that, relative to passive listening, active vocalization yielded enhanced P2 responses to the 100 cents pitch shifts, whereas suppression effects of P2 responses were observed when voice auditory feedback was distorted by pure tones or white noise.<h4>Conclusion/significance</h4>The present findings, for the first time, demonstrate a dynamic modulation of cortical activity as a function of the quality of acoustic feedback at mid-utterance, suggesting that auditory cortical responses can be enhanced or suppressed to distinguish self-produced speech from externally-produced sounds.
format	article
author	Zhaocong Chen Jeffery A Jones Peng Liu Weifeng Li Dongfeng Huang Hanjun Liu
author_facet	Zhaocong Chen Jeffery A Jones Peng Liu Weifeng Li Dongfeng Huang Hanjun Liu
author_sort	Zhaocong Chen
title	Dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.
title_short	Dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.
title_full	Dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.
title_fullStr	Dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.
title_full_unstemmed	Dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.
title_sort	dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/e9e8f651d9ab4f71bef34941f7428acf
work_keys_str_mv	AT zhaocongchen dynamicsofvocalizationinducedmodulationofauditorycorticalactivityatmidutterance AT jefferyajones dynamicsofvocalizationinducedmodulationofauditorycorticalactivityatmidutterance AT pengliu dynamicsofvocalizationinducedmodulationofauditorycorticalactivityatmidutterance AT weifengli dynamicsofvocalizationinducedmodulationofauditorycorticalactivityatmidutterance AT dongfenghuang dynamicsofvocalizationinducedmodulationofauditorycorticalactivityatmidutterance AT hanjunliu dynamicsofvocalizationinducedmodulationofauditorycorticalactivityatmidutterance
_version_	1718422884784799744

Dynamics of vocalization-induced modulation of auditory cortical activity at mid-utterance.

Ejemplares similares