ADAPTATION TO AUDITORY STREAMING OF FREQUENCY-MODULATED TONES
ADAPTATION TO AUDITORY STREAMING OF FREQUENCY-MODULATED TONES
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DOI：
10.1037/0096-1523.11.3.257
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发表时间：
1985-01-01
影响因子：
2.1
通讯作者：
SAIDA, S
中科院分区：
文献类型：
--
作者：
ANSTIS, S;SAIDA, S
在一系列的五个实验中，5名受试者听一个由方波调频的音调，这样它就由两个不同频率的重复交替音调组成。起初，这听起来像是一个音调上下跳跃的单音（时间连贯性），但知觉适应将感知改变为一个高音中断音加上一个同时出现的低音中断音（分裂或流分离）。随着时间的推移，随着适应的建立，听觉时间连贯性的概率稳步下降。时间相干性的概率作为对数调制速率（在约2-10 c/s的范围内）和对数音调间隔（从约1/10到1个倍频程）的函数线性地下降。适应一个中心的听力和测试在另一个表明，适应频率调谐的带宽相当于一个关键的频带。调整一只耳朵并测试另一只耳朵，结果显示适应性没有耳间转移。类似地，在两个音频之间跳跃的音调就像在两个位置之间跳跃的视觉点，并且（可比较的适应的实例）从明显的运动逐渐变化到明显的闪烁。
In a series of five experiments 5 subjects listened to a tone that was frequency modulated by a square wave so that it consisted of two repeatedly alternating tones of different frequency. At first this sounded like a single tone jumping up and down in pitch (temporal coherence), but perceptual adaptation changed the percept into a high-pitched interrupted tone plus a concurrent low-pitched interrupted tone (fission or stream segregation). The probability of hearing temporal coherence decreased steadily over time as adaptation built up. Probability of temporal coherence fell off linearly as a function of log modulation rate (over the range from about 2–10 c/s) and of log tonal interval (from about a semitone to an octave). Adapting to one center audiofrequency and testing at another showed that the adaptation was frequency-tuned with a bandwidth comparable to one critical band. Adapting one ear and testing the other showed no interaural transfer of the adaptation. Analogically, a tone jumping between two audiofrequencies is like a visual spot jumping between two positions and (an instance of comparable adaptation) changing gradually from apparent motion to apparent flicker.