Attenuation of vocal responses to pitch perturbations during Mandarin speech
Attenuation of vocal responses to pitch perturbations during Mandarin speech
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DOI：
10.1121/1.3081523
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发表时间：
2009-04-01
影响因子：
2.4
通讯作者：
Larson, Charles R.
中科院分区：
文献类型：
--
作者：
Liu, Hanjun;Xu, Yi;Larson, Charles R.
本文研究了普通话语音产生过程中不同语调模式下刺激时间对音高变化反馈声反应的影响。而说一个由四个字组成的句子时，声调的高低，其中最后一个字的基频（F-0）。无论是增加（问题语调）或略有下降（陈述语调），音高变化刺激（+/- 100美分，200毫秒的持续时间），提出了在三个不同的时间（160，240，或340毫秒）后，声乐发作。结果表明，在问题语调，反应幅度（16美分）显着减少340毫秒的条件相比，160（26美分）或240（23美分）毫秒的条件。没有发现显着差异，但是，作为一个功能的刺激时间在声明语调。这些研究结果表明，计划的F-0的变化可能会导致调制的自反性反应，在语音音高反馈的扰动，并有一个关键的时间段，在此期间的响应机制是最敏感的规划过程。这些研究结果表明，在讲话过程中连续的话的时间参与的机制的研究方法。(C)2009年，美国声学学会。[DOI：10.1121/1.3081523]
The effect of stimulus timing on vocal responses to pitch-shifted feedback was investigated in different intonation patterns during Mandarin speech production. While speaking a four-word sentence consisting of the high-level tone, where the fundamental frequency (F-0) of the final word. was either increased (question intonation) or slightly falling (statement intonation), pitch-shift stimuli (+/- 100 cents, 200 ms duration) were presented at three different times (160, 240, or 340 ms) after vocal onset. Results showed that in the question intonation, response magnitudes (16 cents) were significantly reduced for the 340 ms condition compared to the 160 (26 cents) or 240 (23 cents) ms conditions. No significant differences were found, however, as a function of stimulus timing in the statement intonation. These findings demonstrate that a planned change in F-0 can cause a modulation in the reflexive response to,a perturbation in voice pitch feedback and that there is a critical time period during which the response mechanisms are most sensitive to the planning process. These findings suggest an approach for the study of mechanisms involved in the timing of successive words during speech. (C) 2009 Acoustical Society of America. [DOI: 10.1121/1.3081523]