Gurfinkel V S
Institute of Information Transmission Problems Russian Academy of Sciences, Moscow.
Exp Brain Res. 1993;95(2):359-64. doi: 10.1007/BF00229794.
Horizontal eye movements were recorded in eight healthy subjects during super-slow trunk rotation with respect to the space-stationary head. In some trials, subjects simultaneously indicated their perception of self-motion by means of a joystick. Over the frequency range employed (0.007-0.05 cycles per second, +/- 20 degrees), all subjects perceived the relative motion of head and trunk as a head rotation with respect to the stationary trunk. Eye movements were observed which were in phase with imaginary head rotation; their amplitude exceeded the amplitude of actual body rotation. The grasping of a rigid ground-based handle (1) produced a sensation of trunk rotation in space, (2) suppressed the sensation of imaginary head rotation in space and (3) gave rise to a significant decrease in amplitude of eye movements. The grasping of a stiff rod with non-zero compliance did not produce these effects. It is concluded that eye movements in response to body rotation with respect to the fixed head are not purely reflex reactions, but are influenced by the internal representation of body motion.
在八名健康受试者中，记录了他们在相对于头部静止的空间站进行超慢速躯干旋转时的水平眼动。在一些试验中，受试者通过操纵杆同时表明他们对自身运动的感知。在所采用的频率范围内（每秒0.007 - 0.05周期，±20度），所有受试者都将头部和躯干的相对运动感知为头部相对于静止躯干的旋转。观察到眼动与想象中的头部旋转同步；其幅度超过了实际身体旋转的幅度。握住一个刚性的地面手柄（1）产生了躯干在空间中旋转的感觉，（2）抑制了想象中的头部在空间中旋转的感觉，（3）导致眼动幅度显著降低。握住一个具有非零顺应性的刚性杆不会产生这些效果。得出的结论是，响应身体相对于固定头部的旋转而产生的眼动并非纯粹的反射反应，而是受到身体运动的内部表征的影响。
