Bronstein A M
Exp Brain Res. 1986;63(3):655-8. doi: 10.1007/BF00237488.
Normal subjects standing on an earth-fixed force platform inside a movable room displaced at velocities comparable to those accompanying spontaneous body sway, exhibit a visually evoked postural response (VEPR) some 600 ms after the start of the room movement. It consists of a displacement of the centre of force of the body in the direction of the stimulus (primary component), followed shortly by a corrective displacement in the opposite (secondary component). On second presentation of the stimulus VEPR is markedly reduced, but only if full proprioceptive information from the lower limbs is available to the subjects. A patient deprived of this information showed much enhanced VEPR which he was unable to suppress, in contrast to a patient with absent vestibular function who presented normal VEPR. The results show that in the presence of conflict between different sensory clues, vision is initially dominant in sway control, although adaptive processes can quickly rearrange this hierarchy.
正常受试者站在一个可移动房间内的地面固定测力平台上，房间以与自发身体摆动相当的速度移动，在房间开始移动约600毫秒后会出现视觉诱发姿势反应（VEPR）。它包括身体力中心在刺激方向上的位移（主要成分），随后不久在相反方向上有一个纠正性位移（次要成分）。当再次呈现刺激时，VEPR会明显降低，但前提是受试者能够获得来自下肢的完整本体感觉信息。与前庭功能缺失但VEPR正常的患者相比，一名被剥夺该信息的患者表现出增强的VEPR且无法抑制。结果表明，在不同感觉线索存在冲突时，视觉最初在摆动控制中占主导地位，尽管适应性过程可以迅速重新安排这种等级关系。
