The vestibulo-auricular reflex.

The vestibulo-auricular reflex.
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前庭耳反射。

DOI:
10.1152/jn.90977.2008
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发表时间:
2009
影响因子:
2.5
通讯作者:
Yin,TomCT
Yin,TomCT
中科院分区:
医学3区
文献类型:
--
作者:
Tollin,DanielJ;Ruhland,JanetL;Yin,TomCT

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哺乳动物对声音的定向反应包括凝视转移,这可能是头部和眼睛运动的组合。在有活动耳廓的动物中,耳朵也会移动。在头部运动中,由于前庭-眼反射(VOR),通过眼球在头部内的补偿性旋转来稳定视力。在研究猫对声音的凝视转移时,发现了一种以前没有特征的代偿性运动。耳廓表现出短潜伏期、目标导向的运动,当头部仍在移动时,它们会到达目标。耳廓通过在头部上以与头部运动相同但相反的速度反向旋转来保持在空间中的固定位置。我们将这些代偿性的耳朵运动称为前庭-耳廓反射(VAR),因为它们与VOR有许多共同的运动学特征。对照实验排除了头部位置信号的传出复制和声源的声学跟踪(声动)是反应的原因。在头部运动时,VAR可能起到稳定听觉世界的作用。
The mammalian orienting response to sounds consists of a gaze shift that can be a combination of head and eye movements. In animals with mobile pinnae, the ears also move. During head movements, vision is stabilized by compensatory rotations of the eyeball within the head because of the vestibulo-ocular reflex (VOR). While studying the gaze shifts made by cats to sounds, a previously uncharacterized compensatory movement was discovered. The pinnae exhibited short-latency, goal-directed movements that reached their target while the head was still moving. The pinnae maintained a fixed position in space by counter-rotating on the head with an equal but opposite velocity to the head movement. We call these compensatory ear movements the vestibulo-auricular reflex (VAR) because they shared many kinematic characteristics with the VOR. Control experiments ruled out efference copy of head position signals and acoustic tracking (audiokinetic) of the source as the cause of the response. The VAR may serve to stabilize the auditory world during head movements.
DOI: 10.1007/bf00234475
发表时间: 1973-01-01
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