MODEL OF QUICK PHASE GENERATION IN VESTIBULOOCULAR REFLEX
MODEL OF QUICK PHASE GENERATION IN VESTIBULOOCULAR REFLEX
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DOI：
10.1007/bf00344268
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发表时间：
1978-01-01
影响因子：
1.9
通讯作者：
ROBINSON, DA
中科院分区：
文献类型：
--
作者：
CHUN, KS;ROBINSON, DA
本文研究了猫在阶跃和正弦头部速度刺激下的前庭眼反射。提出了一个模型，该模型模拟了所观察到的慢相和快相行为。该模型的构建与脑桥神经元行为的神经生理学观察相兼容。重点放在快速阶段的幅度和时间上，快速阶段是主动定向运动，将眼睛驱动到转向的方向。有人提出，快速相位，如扫视，是由脑桥中的局部反馈回路产生的，该反馈回路快速地将眼睛驱动到由前庭信号指定的轨道中的点。显然，2个内部信号指定了快速相位开始和结束的眼位置。测量这些信号波动的统计数据，发现它们之间的相关性并将其纳入模型。
The vestibuloocular reflex of the cat was studied during step and sinusoidal head velocity stimuli. A model was presented which stimulated the observed slow phase and quick phase behavior. The model was constructed to be compatible with neurophysiological observations of the behavior of neurons in the pons. Emphasis was placed on the amplitude and timing of quick phases, which are active orienting movements that drive the eyes into the direction of turning. It was proposed that quick phases, like saccades, are generated by a local feedback loop in the pons which rapidly drives the eyes to a point in the orbit specified by a vestibular signal. Apparently 2 internal signals specify the eye positions at which quick phases start and end. The statistics of the fluctuations of these signals were measured, and the correlation between them was discovered and incorporated in the model.