Shortening of subjective tone intervals followed by repetitive tone stimuli
Shortening of subjective tone intervals followed by repetitive tone stimuli
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DOI：
10.3758/app.72.2.492
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发表时间：
2010-02-01
影响因子：
1.7
通讯作者：
Kitazawa, Shigeru
中科院分区：
文献类型：
--
作者：
Ono, Fuminori;Kitazawa, Shigeru
累积的证据表明，主观时间间隔延长之前或同时呈现闪烁或重复的音调刺激，已被假设为增加频率的脉冲产生的大脑起搏器。在本研究中，我们提出了一系列重复的音调刺激后，间隔开始和结束的音调标记。我们发现，主观知觉的前一个间隔是不延长，但缩短了音调刺激，其次是间隔。知觉持续时间随着重复音调刺激频率的增加而减少。当在测试间隔后以500毫秒的延迟递送重复的音调刺激时，或者当递送连续的声音而不是递送快速的一系列音调时，效果消失。在此基础上，我们提出了在一个测试间隔期间积累的脉冲计数被归一化的时钟频率后的测试间隔在一个postdictive方式。
Accumulated evidence shows that a subjective time interval is lengthened by preceding or concurrent presentation of flickers or repetitive tone stimuli that have been hypothesized to increase the frequency of pulse generation by a brain pacemaker. In the present study, we presented a series of repetitive tone stimuli after an interval that started and ended with tone markers. We found that subjective perception of the preceding interval was not lengthened but shortened by the tone stimuli that followed the interval. The perceived duration decreased as the frequency of the repetitive tone stimuli increased. The effect disappeared when the repetitive tone stimuli were delivered with a delay of 500 msec after the test interval or when continuous sound was delivered instead of delivering a rapid series of tones. On the basis of the results, we propose that the pulse count accumulated during a test interval was normalized by the clock frequency just after the test interval in a postdictive manner.