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首页> 外文期刊>The European Journal of Neuroscience >Sound lateralization during passive whole-body rotation.
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Sound lateralization during passive whole-body rotation.

机译：被动全身旋转过程中出现声音偏斜。

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摘要

The effect of passive whole-body rotation about the earth-vertical axis on the lateralization of dichotic sound was investigated in human subjects. Pure-tone pulses (1 kHz; 0.1 s duration) with various interaural time differences were presented via headphones during brief, low-amplitude rotation (angular acceleration 400 degrees/s2; maximum velocity 90 degrees/s; maximum displacement 194 degrees ). Subjects made two-alternative forced-choice (left/right) judgements on the acoustic stimuli. The auditory median plane of the head was shifted opposite to the direction of rotation, indicating a shift of the intracranial auditory percept in the direction of rotation. The mean magnitude of the shift was 10.7 micros. This result demonstrates a slight, but significant, influence of rotation on sound lateralization, suggesting that vestibular information is taken into account by the brain for accurate localization of stationary sound sources during natural head and body motion.
机译：在人类受试者中，研究了绕地球垂直轴进行的被动全身旋转对分叉声的侧向化的影响。在短暂的低振幅旋转（角加速度为400度/ s2;最大速度为90度/ s;最大位移为194度）期间，通过耳机提供了具有各种听觉间时差的纯音脉冲（1 kHz; 0.1 s持续时间）。受试者对声音刺激做出两种选择的强制选择（左/右）判断。头部的听觉中平面与旋转方向相反，表明颅内听觉在旋转方向上发生了偏移。位移的平均幅度为10.7微米。该结果表明旋转对声音偏侧化有轻微但显着的影响，表明大脑在自然头部和身体运动过程中将前庭信息考虑在内以精确定位固定声源。

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