Waespe W, Büttner U, Henn V
Ann N Y Acad Sci. 1981;374:491-503. doi: 10.1111/j.1749-6632.1981.tb30894.x.
In the primate flocculus, unit activity was recorded during vestibular (rotation of the monkey about the vertical axis in complete darkness), optokinetic (rotation of the visual surround around the stationary monkey), and conflicting (rotation of the visual surround and the turntable fixed together) stimulation. Activity indicating two different mossy fiber inputs was recorded. One carried a signal that was similar to that in the vestibular nuclei: during optokinetic stimulation, neurons saturated at a velocity of 60 degrees/second; and during conflicting stimulation, neuronal activity was attenuated only at low accelerations. This input combines vestibular, visual, and oculomotor information. Another mossy fiber input carried information about visual image slip only. This input indicates instances when nystagmus is not compensatory. Purkinje cells were modulated in their simple spike activity during optokinetic stimulation only at high stimulus velocities of 40-60 degrees/second and above, and during conflicting stimulation at high accelerations. This suggests a complementary information processing of the flocculus and the vestibular nuclei during visual-vestibular stimulation. The findings are corroborated by lesion studies in primates.
在灵长类动物的绒球中，记录了在前庭（猴子在完全黑暗中绕垂直轴旋转）、视动（围绕静止猴子旋转视觉环境）和冲突（视觉环境和转盘固定在一起旋转）刺激期间的单位活动。记录到了表明两种不同苔藓纤维输入的活动。一种携带的信号类似于前庭核中的信号：在视动刺激期间，神经元在60度/秒的速度下达到饱和；在冲突刺激期间，神经元活动仅在低加速度时减弱。这种输入整合了前庭、视觉和动眼神经信息。另一种苔藓纤维输入仅携带有关视觉图像滑动的信息。这种输入表明了眼球震颤不具有代偿性的情况。浦肯野细胞仅在视动刺激期间，在40 - 60度/秒及以上的高刺激速度下，以及在冲突刺激期间的高加速度下，其简单锋电位活动受到调制。这表明在视觉 - 前庭刺激期间，绒球和前庭核进行了互补的信息处理。灵长类动物的损伤研究证实了这些发现。
