Maruta Jun, MacDougall Hamish G, Simpson John I, Raphan Theodore, Cohen Bernard
Department of Neurology, Mount Sinai School of Medicine, New York, NY, USA.
Vision Res. 2006 Mar;46(6-7):961-9. doi: 10.1016/j.visres.2005.10.015. Epub 2005 Dec 7.
We studied ocular asymmetries and orienting responses induced by angular rotation in rabbits with binocular video recordings. Slow phase velocities were significantly larger in the eye moving temporonasally than nasotemporally. The eyes also converged and pitched down during rotation, which increased and refocused binocular overlap in the visual fields. Eye position also shifted into the slow phase direction. Vergence and pitch outlasted the induced nystagmus, suggesting that they were generated by a separate vestibulo-oculomotor subsystem(s). Thus, mechanisms in the rabbit increase compensatory eye velocity in the eye that leads into the direction of rotation and enhance binocular vision.
我们通过双目视频记录研究了家兔在角向旋转时诱发的眼不对称性和定向反应。向颞鼻侧移动的眼睛的慢相速度显著大于向鼻颞侧移动的眼睛。在旋转过程中，眼睛还会内聚并向下倾斜，这增加并重新聚焦了视野中的双眼重叠区域。眼睛位置也向慢相方向移动。集合和倾斜动作持续的时间比诱发的眼球震颤更长，这表明它们是由一个独立的前庭眼动子系统产生的。因此，家兔体内的机制会增加朝旋转方向移动的眼睛的代偿性眼速度，并增强双眼视觉。
