Nagao S
Department of Physiology, Faculty of Medicine, University of Tokyo, Japan.
Neuroreport. 1992 Jan;3(1):13-6. doi: 10.1097/00001756-199201000-00003.
Responses of Purkinje cells were compared in the monkey flocculus and ventral paraflocculus. During vestibuloocular reflex (VOR) eye movements, flocculus Purkinje cells exhibited simple spike modulation related to head velocity, while ventral paraflocculus Purkinje cells exhibited modulation with no such head velocity preference. During smooth tracking of a sinusoidally moving small target, ventral paraflocculus Purkinje cells exhibited simple spike modulation related to target velocity or position, while the flocculus Purkinje cells exhibited a smaller modulation with no such target preference. Visual suppression of the VOR enhanced the simple spike responses in the ventral paraflocculus, but not in the flocculus. These results suggest that the primate flocculus and the ventral paraflocculus control differentially VOR and smooth pursuit eye movements, respectively.
对猴子的绒球和腹侧旁绒球中的浦肯野细胞反应进行了比较。在前庭眼反射（VOR）眼球运动期间，绒球浦肯野细胞表现出与头部速度相关的简单峰电位调制，而腹侧旁绒球浦肯野细胞表现出无这种头部速度偏好的调制。在对正弦运动的小目标进行平稳跟踪期间，腹侧旁绒球浦肯野细胞表现出与目标速度或位置相关的简单峰电位调制，而绒球浦肯野细胞表现出较小的调制且无这种目标偏好。VOR的视觉抑制增强了腹侧旁绒球中的简单峰电位反应，但未增强绒球中的反应。这些结果表明，灵长类动物的绒球和腹侧旁绒球分别以不同方式控制VOR和平稳跟踪眼球运动。
