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Conference Paper: 噪聲環境下刺激速率對廣東語聲調認知能力的影響

Title噪聲環境下刺激速率對廣東語聲調認知能力的影響
Effects of stimulation rate on cantonese tone perception performance for cochlear implant users
Authors
Keywords人工耳蜗植入 (Cochlear implant)
噪声 (Noise)
刺激速率 (Stimulation rate)
声调辨别能力测试 (Tone discrimination test)
声调识别能力测试 (Tone identification test)
Issue Date2004
Citation
中华耳鼻咽喉科杂志创刊50周年暨全国人工耳蜗专题学术会议, 中国, 长沙, 2003年9月12-16日. How to Cite?
Abstract目的: 探讨人工耳蜗装置中刺激速率的改变对人工耳蜗植入者在噪声环境下对广东话声调认知能力的影响。 方法: 受试对象为18例以广东话为母语的成人人工耳蜗植入者。实验选取1515,800 和400脉冲/秒/通道以分别代表高、中、低3种不同刺激速率。在随机选取一种刺激速率后,患者需要在安静及不同信噪比的噪声环境下分别完成对广东话声调辨别能力及识别能力的测试。结果: 在安静及不同信噪比的噪声环境下,两项声调认知能力测试的成绩均随刺激速率的减低而下降。在0,+5及+10的信噪比下,高速率刺激与低速率刺激下的声调辨别能力的测试成绩存在显著性差异。在-5 及0 的信噪比下,高速率刺激与低速率刺激下的声调识别能力测试成绩存在显著性差异。结论: 高速率刺激可以为人工耳蜗植入者提供更好的时间信息,有助于提高在噪声环境下的广东话声调认知能力。
OBJECTIVE: To evaluate the effects of stimulation rate on Cantonese tone perception performance against a background noise by Cantonese-speaking cochlear implant users. METHODS: Eighteen adult Cantonese-speakers with cochlear implantation participated in this study. All subjects had at least six-month experience in using the MED-EL tempo + cochlear implant device with the continuous interleaved sampling speech coding strategy. Three stimulation rates of 1515, 800 and 400 pulses per second per channel were selected to represent high, moderate and low stimulation rate conditions, respectively. Two speech tests-tone discrimination test and tone identification test were used to evaluate the effects of stimulation rate in this study. After being randomly assigned to each of the stimulation rate, the subjects were required to listen to a randomized list of speech tests presented in quiet and against a background noise of different signal-to-noise ratios. RESULTS: High stimulation rate resulted in better tone perception than low stimulation rate. For the tone discrimination test, significant differences were observed between high and low stimulation rates at signal-to-noise ratios of 0, +5, and +10 dB. For the tone identification test, there were significant differences between high and low stimulation rates at signal-to-noise ratios of -5 and 0 dB. CONCLUSION: A high stimulation rate may provide better temporal and spectral information, which is important for Cantonese tone perception against a background noise.
Persistent Identifierhttp://hdl.handle.net/10722/107568

 

DC FieldValueLanguage
dc.contributor.author金昊zh_HK
dc.contributor.author许由zh_HK
dc.contributor.author区建国zh_HK
dc.contributor.author韦霖zh_HK
dc.date.accessioned2010-09-26T00:03:08Z-
dc.date.available2010-09-26T00:03:08Z-
dc.date.issued2004en_HK
dc.identifier.citation中华耳鼻咽喉科杂志创刊50周年暨全国人工耳蜗专题学术会议, 中国, 长沙, 2003年9月12-16日.zh_HK
dc.identifier.urihttp://hdl.handle.net/10722/107568-
dc.description.abstract目的: 探讨人工耳蜗装置中刺激速率的改变对人工耳蜗植入者在噪声环境下对广东话声调认知能力的影响。 方法: 受试对象为18例以广东话为母语的成人人工耳蜗植入者。实验选取1515,800 和400脉冲/秒/通道以分别代表高、中、低3种不同刺激速率。在随机选取一种刺激速率后,患者需要在安静及不同信噪比的噪声环境下分别完成对广东话声调辨别能力及识别能力的测试。结果: 在安静及不同信噪比的噪声环境下,两项声调认知能力测试的成绩均随刺激速率的减低而下降。在0,+5及+10的信噪比下,高速率刺激与低速率刺激下的声调辨别能力的测试成绩存在显著性差异。在-5 及0 的信噪比下,高速率刺激与低速率刺激下的声调识别能力测试成绩存在显著性差异。结论: 高速率刺激可以为人工耳蜗植入者提供更好的时间信息,有助于提高在噪声环境下的广东话声调认知能力。zh_HK
dc.description.abstractOBJECTIVE: To evaluate the effects of stimulation rate on Cantonese tone perception performance against a background noise by Cantonese-speaking cochlear implant users. METHODS: Eighteen adult Cantonese-speakers with cochlear implantation participated in this study. All subjects had at least six-month experience in using the MED-EL tempo + cochlear implant device with the continuous interleaved sampling speech coding strategy. Three stimulation rates of 1515, 800 and 400 pulses per second per channel were selected to represent high, moderate and low stimulation rate conditions, respectively. Two speech tests-tone discrimination test and tone identification test were used to evaluate the effects of stimulation rate in this study. After being randomly assigned to each of the stimulation rate, the subjects were required to listen to a randomized list of speech tests presented in quiet and against a background noise of different signal-to-noise ratios. RESULTS: High stimulation rate resulted in better tone perception than low stimulation rate. For the tone discrimination test, significant differences were observed between high and low stimulation rates at signal-to-noise ratios of 0, +5, and +10 dB. For the tone identification test, there were significant differences between high and low stimulation rates at signal-to-noise ratios of -5 and 0 dB. CONCLUSION: A high stimulation rate may provide better temporal and spectral information, which is important for Cantonese tone perception against a background noise.-
dc.languagechien_HK
dc.relation.ispartof中华耳鼻咽喉科杂志创刊50周年暨全国人工耳蜗专题学术会议zh_HK
dc.subject人工耳蜗植入 (Cochlear implant)zh_HK
dc.subject噪声 (Noise)zh_HK
dc.subject刺激速率 (Stimulation rate)zh_HK
dc.subject声调辨别能力测试 (Tone discrimination test)zh_HK
dc.subject声调识别能力测试 (Tone identification test)zh_HK
dc.title噪聲環境下刺激速率對廣東語聲調認知能力的影響zh_HK
dc.titleEffects of stimulation rate on cantonese tone perception performance for cochlear implant users-
dc.typeConference_Paperen_HK
dc.identifier.emailAu, DKK: kinkwau@hkucc.hku.hken_HK
dc.identifier.emailHui, Y: yhui@HKUCC.hku.hken_HK
dc.identifier.emailWei, WI: hrmswwi@hku.hken_HK
dc.identifier.authorityAu, DKK=rp00385en_HK
dc.identifier.authorityWei, WI=rp00323en_HK
dc.identifier.hkuros94793en_HK
dc.identifier.volume2004-
dc.identifier.issue3-
dc.identifier.spage7-
dc.identifier.epage9-

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