Alexeenko N Y, Kamenkovich V M
Acta Neurobiol Exp (Wars). 1979;39(2):57-65.
Proprioceptive effects (PE) on directional hearing, i.e., sound image shifts relatively to the sound source, produced by changes in head position, were studied in their dependence on head movement type in two groups of listeners. The first group included subjects in whom horizontal head deviation to the right or to the left, performed on instruction before the presentation of clicks, caused sound image displacement of 10-15 degrees. When the same sounds were made signals of movement direction, i.e., of pointing with the head at the sound source, PE became fully inhibited in all subjects. The second group included listeners in whom PE was either absent or only very small; substitution of passive head deviations for active turns resulted (in 63 percent of cases) in PEs which presumably had been previously inhibited. Thus identical muscle activities play different roles in auditory spatial perception depending on the type of movement and on the significance of the acoustic signal for the motor act.
在两组听众中，研究了本体感受效应（PE）对定向听觉的影响，即由头部位置变化产生的声像相对于声源的移动，并探讨了其对头部运动类型的依赖性。第一组受试者在点击声呈现前按指令将头部水平向右或向左偏斜，会导致声像位移10 - 15度。当相同声音作为运动方向信号，即头部指向声源时，所有受试者的本体感受效应完全被抑制。第二组听众中，要么不存在本体感受效应，要么其效应非常小；用主动转头代替被动头部偏斜（在63%的情况下）会产生可能之前被抑制的本体感受效应。因此，相同的肌肉活动在听觉空间感知中根据运动类型和声学信号对运动行为的重要性发挥不同作用。
