Schweigart G, Mergner T
Ruhr-University Bochum, Department of Neurophysiology MA4, Germany.
Neurosci Lett. 1995 Oct 20;199(2):123-6. doi: 10.1016/0304-3940(95)12037-5.
Interaction of vestibulo-ocular reflex (VOR) and optokinetic reflex (OKR) was studied in macaque monkeys by recording horizontal eye movements during transient rotations of their heads and/or an optokinetic pattern in space. At low peak velocities of the stimuli (1.25 degrees/s, 10.0 degrees/s) the eyes were rather well stabilized on the optokinetic pattern, independently of whether the head, the pattern, or both were rotated. At higher velocities (40.0 degrees/s), the OKR gain was attenuated and, when combining vestibular and optokinetic stimuli, the eyes became increasingly stabilized in space. The data could be simulated by a computer model previously designed to describe VOR-OKR interaction during sinusoidal rotations. In this model eye stabilization primarily relies on the OKR, while the role of the VOR is to compensate for the limited bandwidth of the OKR.
通过在猕猴头部短暂旋转和/或空间中的视动模式期间记录水平眼动，研究了前庭眼反射（VOR）和视动反射（OKR）之间的相互作用。在低刺激峰值速度（1.25度/秒、10.0度/秒）下，无论头部、模式还是两者都旋转，眼睛都能相当好地稳定在视动模式上。在较高速度（40.0度/秒）下，OKR增益减弱，并且当结合前庭和视动刺激时，眼睛在空间中变得越来越稳定。这些数据可以由先前设计用于描述正弦旋转期间VOR-OKR相互作用的计算机模型进行模拟。在该模型中，眼睛稳定主要依赖于OKR，而VOR的作用是补偿OKR有限的带宽。
