Schweigart G, Mergner T, Becker W
Neurologische Universitätsklinik, Universität Freiburg, Germany.
Acta Otolaryngol. 1995 Jan;115(1):19-25. doi: 10.3109/00016489509133340.
VOR-OKR interaction was studied in macaque monkey in the frequency domain, using various vestibular-visual stimulus combinations in the horizontal plane. At low stimulus frequencies (< 0.1 Hz), the eyes were always stabilized on the optokinetic pattern, irrespective of whether the head, the pattern, or both were rotated. At higher frequencies, the gain of the OKR attenuated, and concomitantly the eyes became increasingly stabilized in space. These findings show that the VOR becomes functionally relevant only at high frequencies. It compensates for the limited bandwidth of the OKR, thereby improving vision provided the pattern to be fixated is stationary in space.
在频域中，利用水平面内各种前庭视觉刺激组合，对猕猴的前庭眼反射（VOR）与视动眼反射（OKR）的相互作用进行了研究。在低刺激频率（<0.1Hz）时，无论头部、视动模式或两者都旋转，眼睛总是稳定在视动模式上。在较高频率时，OKR的增益衰减，同时眼睛在空间中越来越稳定。这些发现表明，VOR仅在高频时才具有功能相关性。它补偿了OKR有限的带宽，从而在要注视的模式在空间中静止时改善视觉。
