Fuller J H
Brain Res. 1981 Feb 2;205(2):363-81. doi: 10.1016/0006-8993(81)90346-2.
Rabbits passively oscillated in the horizontal plane with a free hand tended to stabilize their head in space (re: earth-fixed surroundings) by moving the head on the trunk (neck angular deviation, NAD) opposite the passively imposed body rotation. The gain (NAD/body rotation) of head stabilization varied from 0.0 to 0.95 (nearly perfect stability) and was most commonly above 0.5. Horizontal eye movement (HEM) was inversely proportional to head-in-space stability, i.e. the gaze (sum of HEM, NAD, and body rotation) was stable in space (regardless of the gain of head stabilization). When the head was fixed to the rotating platform, attempted head movements (head torque) mimicked eye movements in both the slow and fast phases of vestibular nystagmus; tonic eye position was also accompanied by conjugate shifts in tonic head torque. Thus, while eye and head movements may at times be linked, that the slow eye and head movements vary inversely during vestibular stimulation with a free head indicates that the linkage is not rigid. Absence of a textured stationary visual field consistently produced a response termed 'visual inattentiveness,' which was characterized by, among other things, a reduction of head and gaze stability in space. This behavioral response could also be reproduced in a subject allowed vision during prolonged vestibular stimulation in the absence of other environmental stimuli. It is suggested that rabbits optimize gaze stability (re: stationary surroundings), with the head contributing variably, as long as the animal is attending to its surroundings.
用一只手使兔子在水平面内被动摆动时，兔子倾向于通过在躯干上移动头部（颈部角偏差，NAD）来稳定其头部在空间（相对于固定于地球的周围环境）中的位置，移动方向与被动施加的身体旋转方向相反。头部稳定的增益（NAD/身体旋转）在0.0至0.95之间变化（接近完美稳定），最常见的值高于0.5。水平眼动（HEM）与头部在空间中的稳定性成反比，即注视（HEM、NAD和身体旋转的总和）在空间中是稳定的（无论头部稳定的增益如何）。当头部固定在旋转平台上时，尝试的头部运动（头部扭矩）在前庭性眼球震颤的慢相和快相中都模仿眼动；紧张性眼位也伴随着紧张性头部扭矩的共轭变化。因此，虽然眼动和头部运动有时可能相关，但在自由头部的前庭刺激期间，慢眼动和慢头部运动呈反比变化，这表明这种相关性并非固定不变。缺乏有纹理的静止视野始终会产生一种称为“视觉不专注”的反应，其特征包括空间中头部和注视稳定性的降低等。在没有其他环境刺激的情况下，在长时间前庭刺激期间允许有视觉的受试者身上也能重现这种行为反应。研究表明，只要动物关注其周围环境，兔子就会优化注视稳定性（相对于静止的周围环境），头部的贡献程度各不相同。
