对于400赫兹和800赫兹双耳分听重复序列的频率侧化

Lateralization by frequency for repeating sequences of dichotic 400- and 800-Hz tones.

作者信息

Deutsch D

出版信息

J Acoust Soc Am. 1978 Jan;63(1):184-6. doi: 10.1121/1.381710.

Abstract

Subjects made lateralization judgments involving dichotic sequences of 250-ms tones, which alternated in frequency between 400 and 800 Hz, such that when one ear received 400 Hz the other ear received 800 Hz, and vice versa. With sequences consisting of 20 dichotic tone pairs there was a strong tendency to lateralize each fused tonal percept toward the ear receiving the 800-Hz signal. In certain subjects the effect also occurred even when the 800-Hz tone was substantially lower in amplitude than the 400-Hz tone, and when it was clearly lesser in loudness. However, with sequences consisting of only two dichotic tone pairs, this lateralization-by-frequency effect was substantially weaker.

摘要

受试者对时长为250毫秒的双耳分听音调序列进行偏向判断，这些音调在400赫兹至800赫兹之间交替变化频率，即当一只耳朵接收到400赫兹的音调时，另一只耳朵接收到800赫兹的音调，反之亦然。对于由20对双耳分听音调组成的序列，每个融合音调感知都有强烈的偏向接收800赫兹信号耳朵的趋势。在某些受试者中，即使800赫兹音调的振幅明显低于400赫兹音调，且响度明显较小，这种效应仍然会出现。然而，对于仅由两对双耳分听音调组成的序列，这种按频率偏向的效应要弱得多。