STUDIES IN AUDITORY TIMING .1. SIMPLE PATTERNS
STUDIES IN AUDITORY TIMING .1. SIMPLE PATTERNS
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DOI：
10.3758/bf03204997
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发表时间：
1990-03-01
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影响因子：
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通讯作者：
SINGH, PG
中科院分区：
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作者：
HIRSH, IJ;MONAHAN, CB;SINGH, PG
通过三个心理物理学实验来测量听众区分一种时间模式与另一种时间模式的准确性。当标准模式由等时（等时）短音组成，其发作间隔（IOI）为 50、100 或 200 毫秒时，检测序列中一个音调的异步或偏差的准确度大约与区分单个时间间隔的早期研究预测的一样（IOI 为 200 毫秒时为 6%-8%，IOI 为 100 时为 11%-12%）毫秒，IOI 为 50 毫秒时几乎为 20%）。在一系列或 10 个音调中，该精度与 100 和 200 毫秒 IOI 的延迟位置无关。然而，在 50 毫秒时，精度取决于位置，初始位置最差，最终位置最好。当一系列六个音调中的一个音调具有与其他音调不同的频率时，有一些证据（在 IOI = 200 毫秒）表明，对于具有不同频率的音调，间隔辨别力相对较差。类似地，即使所有音调具有相同的频率，但该系列中的一个音程的长度是其他音程的两倍，对于与较长音程接壤的音调，时间辨别能力较差，尽管这一结果取决于节奏或 IOI。这些时间上更复杂的模式的结果可以通过将相对韦伯比应用于延迟音调之前和之后的间隔来部分解释。或者，这些实验可以显示重音对各个音调的时间辨别的影响。
Listeners'' accuracy in discriminating one temporal pattern from another was measured in three psychophysical experiments. When the standard pattern consisted of equally timed (isochronic) brief tones, whose interonset intervals (IOIs) were 50, 100, or 200 msec, the accuracy in detecting an asynchrony or deviation of one tone in the sequence was about as would be predicted from older research on the discrimination of single time intervals (6%-8% at an IOI of 200 msec, 11%-12% at an IOI of 100 msec, and almost 20% at an IOI of 50 msec). In a series or 10 tones, this accuracy was independent of position of delay for IOIs of 100 and 200 msec. At 50 msec, however, accuracy depended on position, being worst in initial positions and best in final positions. When one tone in a series of six has a frequency different from the others, there is some evidence (at IOI = 200 msec) that interval discrimiantion is relatively poorer for the tone with the different frequency. Similarly, even if all tones have the same frequency but one interval in the series is made twice as long as the others, temporal discrimination is poorer for the tones bordering the longer interval, although this result is dependent on tempo or IOI. Results with these temporally more complex patterns may be interpreted in part by applying the relative Weber ratio to the intervals before and after the delayed tone. Alternatively, these experiments may show the influence of accent on the temporal discrimination of individual tones.