EYE, HEAD AND BODY MOVEMENTS OF GUINEA-PIG IN RESPONSE TO OPTOKINETIC STIMULATION AND SINUSOIDAL OSCILLATION IN YAW
EYE, HEAD AND BODY MOVEMENTS OF GUINEA-PIG IN RESPONSE TO OPTOKINETIC STIMULATION AND SINUSOIDAL OSCILLATION IN YAW
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DOI：
10.1007/bf00584284
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发表时间：
1975-01-01
影响因子：
4.5
通讯作者：
GRESTY, MA
中科院分区：
文献类型：
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作者：
GRESTY, MA
在光动力刺激和全身偏航轴振荡作用下，观察豚鼠头、眼反射运动。光动力刺激诱导头部向刺激方向低速运动，并向相反方向逐步运动。在运动刺激下，头部在空间中很好地稳定下来，并逐步移动到新的位置；在没有视力的情况下，头部不能保持稳定的位置。头部逐步运动的开始总是与同一方向的眼球跳动同步，这种协调类似于自主运动。在头部稳定良好的情况下，没有发生前庭眼球震颤。豚鼠似乎通过优先稳定头部来避免眼球震颤。前庭眼反射可能在自愿和逐级反射头运动的频率范围内以单位增益补偿头部位移，跳眼运动的控制与自愿或反射头运动的控制之间存在密切的关系。
Reflex head and eye movements were observed in the guinea pig subjected to optokinetic stimulation and whole body oscillation in the yaw axis. Optokinetic stimuli induced low velocity head movements in the direction of the stimulus with stepwise movements in the opposite direction. With motion stimuli, the head was well stabilized in space and moved to new positions in stepwise manner; in the absence of vision the head was not able to maintain a stable position. The onset of a stepwise head movement was always synchronized with a saccadic eye movement in the same direction, the coordination being similar to voluntary movement. During good head stabilization, vestibular-ocular nystagmus did not occur. The guinea pig appears to avoid nystagmus by stabilizing its head preferentially. It is likely that the vestibular ocular reflex compensates for head displacement with unity gain in the frequency range of voluntary and stepwise reflex head movement and that a close relationship exists between the control of saccadic eye movements and that of voluntary or reflex head movement.