Contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.

<h4>Purpose</h4>To investigate how auditory working memory relates to speech perception performance by Mandarin-speaking cochlear implant (CI) users.<h4>Method</h4>Auditory working memory and speech perception was measured in Mandarin-speaking CI and normal-hearing (NH) parti...

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Autores principales:	Duoduo Tao, Rui Deng, Ye Jiang, John J Galvin, Qian-Jie Fu, Bing Chen
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c4d4291fb53f4cc386191d964b87688d
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spelling	oai:doaj.org-article:c4d4291fb53f4cc386191d964b87688d2021-11-18T08:16:00ZContribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.1932-620310.1371/journal.pone.0099096https://doaj.org/article/c4d4291fb53f4cc386191d964b87688d2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24921934/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Purpose</h4>To investigate how auditory working memory relates to speech perception performance by Mandarin-speaking cochlear implant (CI) users.<h4>Method</h4>Auditory working memory and speech perception was measured in Mandarin-speaking CI and normal-hearing (NH) participants. Working memory capacity was measured using forward digit span and backward digit span; working memory efficiency was measured using articulation rate. Speech perception was assessed with: (a) word-in-sentence recognition in quiet, (b) word-in-sentence recognition in speech-shaped steady noise at +5 dB signal-to-noise ratio, (c) Chinese disyllable recognition in quiet, (d) Chinese lexical tone recognition in quiet. Self-reported school rank was also collected regarding performance in schoolwork.<h4>Results</h4>There was large inter-subject variability in auditory working memory and speech performance for CI participants. Working memory and speech performance were significantly poorer for CI than for NH participants. All three working memory measures were strongly correlated with each other for both CI and NH participants. Partial correlation analyses were performed on the CI data while controlling for demographic variables. Working memory efficiency was significantly correlated only with sentence recognition in quiet when working memory capacity was partialled out. Working memory capacity was correlated with disyllable recognition and school rank when efficiency was partialled out. There was no correlation between working memory and lexical tone recognition in the present CI participants.<h4>Conclusions</h4>Mandarin-speaking CI users experience significant deficits in auditory working memory and speech performance compared with NH listeners. The present data suggest that auditory working memory may contribute to CI users' difficulties in speech understanding. The present pattern of results with Mandarin-speaking CI users is consistent with previous auditory working memory studies with English-speaking CI users, suggesting that the lexical importance of voice pitch cues (albeit poorly coded by the CI) did not influence the relationship between working memory and speech perception.Duoduo TaoRui DengYe JiangJohn J GalvinQian-Jie FuBing ChenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 6, p e99096 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Duoduo Tao Rui Deng Ye Jiang John J Galvin Qian-Jie Fu Bing Chen Contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.
description	<h4>Purpose</h4>To investigate how auditory working memory relates to speech perception performance by Mandarin-speaking cochlear implant (CI) users.<h4>Method</h4>Auditory working memory and speech perception was measured in Mandarin-speaking CI and normal-hearing (NH) participants. Working memory capacity was measured using forward digit span and backward digit span; working memory efficiency was measured using articulation rate. Speech perception was assessed with: (a) word-in-sentence recognition in quiet, (b) word-in-sentence recognition in speech-shaped steady noise at +5 dB signal-to-noise ratio, (c) Chinese disyllable recognition in quiet, (d) Chinese lexical tone recognition in quiet. Self-reported school rank was also collected regarding performance in schoolwork.<h4>Results</h4>There was large inter-subject variability in auditory working memory and speech performance for CI participants. Working memory and speech performance were significantly poorer for CI than for NH participants. All three working memory measures were strongly correlated with each other for both CI and NH participants. Partial correlation analyses were performed on the CI data while controlling for demographic variables. Working memory efficiency was significantly correlated only with sentence recognition in quiet when working memory capacity was partialled out. Working memory capacity was correlated with disyllable recognition and school rank when efficiency was partialled out. There was no correlation between working memory and lexical tone recognition in the present CI participants.<h4>Conclusions</h4>Mandarin-speaking CI users experience significant deficits in auditory working memory and speech performance compared with NH listeners. The present data suggest that auditory working memory may contribute to CI users' difficulties in speech understanding. The present pattern of results with Mandarin-speaking CI users is consistent with previous auditory working memory studies with English-speaking CI users, suggesting that the lexical importance of voice pitch cues (albeit poorly coded by the CI) did not influence the relationship between working memory and speech perception.
format	article
author	Duoduo Tao Rui Deng Ye Jiang John J Galvin Qian-Jie Fu Bing Chen
author_facet	Duoduo Tao Rui Deng Ye Jiang John J Galvin Qian-Jie Fu Bing Chen
author_sort	Duoduo Tao
title	Contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.
title_short	Contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.
title_full	Contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.
title_fullStr	Contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.
title_full_unstemmed	Contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.
title_sort	contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/c4d4291fb53f4cc386191d964b87688d
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Contribution of auditory working memory to speech understanding in mandarin-speaking cochlear implant users.

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