Visual and oculomotor responses induced by neck vibration in normal subjects and labyrinthine-defective patients
Visual and oculomotor responses induced by neck vibration in normal subjects and labyrinthine-defective patients
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DOI：
10.1007/s002210050854
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发表时间：
1999-10-01
影响因子：
2
通讯作者：
Gresty, MA
中科院分区：
文献类型：
--
作者：
Popov, KE;Lekhel, H;Gresty, MA
三维巩膜探测线圈眼球运动记录获得了5名正常人和4例前庭功能缺失的患者，在仰卧位的颈部单侧振动。实验的目的是研究眼球运动在错觉中所起的任何作用，即当振动施加到颈部时，在黑暗的房间中观察到的小固定目标会移动（本体旋转错觉）。在三种视觉条件下，振动施加于右颈背部肌肉：完全黑暗，在完全黑暗的房间中固定发光二极管（LED），以及在正常照明的房间中固定LED。正常受试者报告称，在振动期间，在黑暗的房间中使用LED固定，目标似乎主要向左移动，患者报告主要向下移动。在所有受试者中一致地引起眼球运动。在正常受试者有一个慢相眼动主要是向右，中断的眼球震颤快速阶段在相反的方向，而在患者中慢相主要是向上与快速阶段向下。在黑暗中，眼球运动较大，但初始慢相分量的速度（
Three-dimensional scleral search coil eye movement recordings were obtained in five normal subjects and four patients with absent vestibular function, during unilateral vibration of the neck in the supine position. The purpose of the experiments was to investigate any role played by eye movements in the illusion that a small fixation target, viewed in an otherwise dark room, moves when vibration is applied to the neck (propriogyral illusion). Vibration was applied to the right dorsal neck muscles in three visual conditions: total darkness, fixating a light-emitting diode (LED) in an otherwise totally dark room and LED fixation in the normally lit room. Normal subjects reported that during vibration, with LED fixation in an otherwise dark room, the target appeared to move predominantly leftwards and patients reported a predominantly downward movement. Eye movements were consistently elicited in all subjects. In normal subjects there was a slow-phase eye movement predominantly to the right, interrupted by nystagmic quick phases in the opposite direction, whereas in the patients slow phases were predominantly upward with quick phases downward. Eye movements were larger in the dark but the velocity of the initial slow-phase component (