SUSCEPTIBILITY TO THE EFFECTS OF DELAYED AUDITORY-FEEDBACK
SUSCEPTIBILITY TO THE EFFECTS OF DELAYED AUDITORY-FEEDBACK
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DOI：
10.3758/bf03206371
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发表时间：
1984-01-01
期刊：
影响因子：
--
通讯作者：
ARCHER, A
中科院分区：
文献类型：
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作者：
HOWELL, P;ARCHER, A
如果在说话者说话和听到声音之间出现延迟，语音表现就会恶化[DAF，延迟听觉反馈]。大多数干扰发生在说话延迟约200毫秒时。并非所有讲话者都同样容易受到DAF的影响。这里检验的假设是，当一个有节奏的事件与该活动同时发生但不同步时，执行顺序组织行为（如演讲）的退化就会发生。对DAF影响的不同敏感性可以用这个假设来解释，因为不同步信号的响度会有所不同，这取决于说话者在DAF下提高声音的程度。报道了两个与这一假设相一致的实验。在实验1中，自发或电子方式引起的声级变化增加了观察到的干扰。实验2表明，非同步信号不一定是语音才会对语音控制产生问题，因为当用与语音水平相同的非语音信号代替延迟的语音时，会发生等效的中断。
Speech performance deteriorates if a delay is introduced between the time when speakers speak a sound and when they hear it [DAF, delayed auditory feedback]. Most disturbance occurs when speech is delayed by about 200 ms. Not all speakers are equally susceptible to the effects of DAF. The hypothesis examined here is that deterioration in performing a serially organized behavior (such as speech) occurs when a rhythmic event goes on concurrent with but out of synchrony with the activity. Different susceptibility to the effects of DAF can be accounted for by this hypothesis because the out-of-synchrony signal would differ in loudness, depending on the amount by which speakers raise their voices under DAF. Two experiments are reported which are consistent with this hypothesis. In experiment 1, changes in voice level brought about by voluntary or electronic means increased the disturbance observed. Experiment 2 shows that the out-of-synchrony signal does not have to be speech to produce problems for speech control, because equivalent disruption occurs whin a nonspeech signal at the same level as the speech is substituted for the delayed speech sound.