The pattern of changes produced in the saccadic system and vestibuloocular reflex by visually patching one eye.
The pattern of changes produced in the saccadic system and vestibuloocular reflex by visually patching one eye.
复制标题
通过视觉修补一只眼睛而在扫视系统和前庭眼反射中产生的变化模式。
DOI：
10.1152/jn.1987.57.1.92
复制
发表时间：
1987
影响因子：
2.5
通讯作者：
T. Vilis
中科院分区：
文献类型：
--
作者：
E. Viirre;W. Cadera;T. Vilis
本研究的目的是确定，在没有视觉输入到一只眼睛，扫视是否保持平等的两只眼睛。对于两只眼睛的VOR增益，解决了相同的问题。1周后，在此期间，一只眼睛被连续修补，只有看不见的眼睛的扫视特性显示的变化组成的变化，通常是减少，在扫视步骤幅度，随时间方向上的指数衰减分量的扫视后漂移，以及垂直分量的外观，以及垂直扫视后漂移水平定向扫视。在VOR中也观察到了影响，包括在水平头部旋转过程中的增益和垂直分量的变化。与扫视一样，当眼睛向鼻侧偏斜时，打补丁的眼睛中的垂直分量向上。当揭除贴片时，之前贴过贴片的眼睛在1天内恢复正常功能，而不损害未贴过贴片的眼睛的功能。这些结果表明，眼跳和VOR的共轭性质部分是选择性的，视觉驱动的，校准机制的结果，它可以改变命令的共轭肌肉对的一个肌肉的运动神经元，而不影响命令的其他。修补后VOR和扫视中观察到的变化的相似性表明，在没有视觉的情况下，两者共有的元素发生了变化。
The purpose of the present study was to determine whether, in the absence of visual input to one eye, saccades remained equal in the two eyes. The same question was addressed for the VOR gain of the two eyes. After 1 wk during which one eye was continuously patched, the saccadic properties of only the unseeing eye showed changes consisting of a change, usually a decrease, in saccadic step magnitude, postsaccadic drift with an exponentially decaying component in the temporal direction, and the appearance of a vertical component as well as vertical postsaccadic drift during horizontally directed saccades. Effects were also observed in the VOR consisting of a change in gain and a vertical component during horizontal head rotation. As with saccades, the vertical component in the patched eye was upward when the eye was deviated nasally. When the patch was removed, normal function was restored within 1 day to the previously patched eye without impairing the function of the unpatched eye. These results suggest that the conjugate nature of saccades and the VOR is in part the consequence of a selective, visually driven, calibration mechanism, which can alter commands to motoneurons of one muscle of a conjugate muscle pair without affecting commands to the other. The similarity of changes observed in the VOR and saccades after patching suggests that elements common to both are altered in the absence of vision.