The mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.

Congenital amusia is a neuro-developmental disorder of pitch perception that causes severe problems with music processing but only subtle difficulties in speech processing. This study investigated speech processing in a group of Mandarin speakers with congenital amusia. Thirteen Mandarin amusics and...

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Autores principales:	Fang Liu, Cunmei Jiang, William Forde Thompson, Yi Xu, Yufang Yang, Lauren Stewart
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/824cdf27e1b542a39197e00a6fd21070
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spelling	oai:doaj.org-article:824cdf27e1b542a39197e00a6fd210702021-11-18T07:28:43ZThe mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.1932-620310.1371/journal.pone.0030374https://doaj.org/article/824cdf27e1b542a39197e00a6fd210702012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22347374/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Congenital amusia is a neuro-developmental disorder of pitch perception that causes severe problems with music processing but only subtle difficulties in speech processing. This study investigated speech processing in a group of Mandarin speakers with congenital amusia. Thirteen Mandarin amusics and thirteen matched controls participated in a set of tone and intonation perception tasks and two pitch threshold tasks. Compared with controls, amusics showed impaired performance on word discrimination in natural speech and their gliding tone analogs. They also performed worse than controls on discriminating gliding tone sequences derived from statements and questions, and showed elevated thresholds for pitch change detection and pitch direction discrimination. However, they performed as well as controls on word identification, and on statement-question identification and discrimination in natural speech. Overall, tasks that involved multiple acoustic cues to communicative meaning were not impacted by amusia. Only when the tasks relied mainly on pitch sensitivity did amusics show impaired performance compared to controls. These findings help explain why amusia only affects speech processing in subtle ways. Further studies on a larger sample of Mandarin amusics and on amusics of other language backgrounds are needed to consolidate these results.Fang LiuCunmei JiangWilliam Forde ThompsonYi XuYufang YangLauren StewartPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 2, p e30374 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fang Liu Cunmei Jiang William Forde Thompson Yi Xu Yufang Yang Lauren Stewart The mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.
description	Congenital amusia is a neuro-developmental disorder of pitch perception that causes severe problems with music processing but only subtle difficulties in speech processing. This study investigated speech processing in a group of Mandarin speakers with congenital amusia. Thirteen Mandarin amusics and thirteen matched controls participated in a set of tone and intonation perception tasks and two pitch threshold tasks. Compared with controls, amusics showed impaired performance on word discrimination in natural speech and their gliding tone analogs. They also performed worse than controls on discriminating gliding tone sequences derived from statements and questions, and showed elevated thresholds for pitch change detection and pitch direction discrimination. However, they performed as well as controls on word identification, and on statement-question identification and discrimination in natural speech. Overall, tasks that involved multiple acoustic cues to communicative meaning were not impacted by amusia. Only when the tasks relied mainly on pitch sensitivity did amusics show impaired performance compared to controls. These findings help explain why amusia only affects speech processing in subtle ways. Further studies on a larger sample of Mandarin amusics and on amusics of other language backgrounds are needed to consolidate these results.
format	article
author	Fang Liu Cunmei Jiang William Forde Thompson Yi Xu Yufang Yang Lauren Stewart
author_facet	Fang Liu Cunmei Jiang William Forde Thompson Yi Xu Yufang Yang Lauren Stewart
author_sort	Fang Liu
title	The mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.
title_short	The mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.
title_full	The mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.
title_fullStr	The mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.
title_full_unstemmed	The mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.
title_sort	mechanism of speech processing in congenital amusia: evidence from mandarin speakers.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/824cdf27e1b542a39197e00a6fd21070
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The mechanism of speech processing in congenital amusia: evidence from Mandarin speakers.

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