Marcus J T, Bles W, Van Holten C R
TNO Institute for Perception, Soesterberg, The Netherlands.
Adv Space Res. 1989;9(11):213-22. doi: 10.1016/0273-1177(89)90076-8.
The influence of gravity load on the vestibular system in man was investigated in a centrifuge operating on the free swing principle. The vertical vestibular nystagmus induced by acceleration to 3G was analyzed and compared with reference measurements during 1G. Our data indicate that the effects of increased gravity load include a prolonged decay time constant of upbeat nystagmus and a subject-dependent persisting upbeat nystagmus. In an attempt to explain these findings, an extension of the velocity storage model is proposed, with gravity as a second stimulus function in addition to angular acceleration.
利用基于自由摆动原理运行的离心机，研究了重力负荷对人体前庭系统的影响。分析了加速至3G时诱发的垂直前庭眼震，并与1G时的参考测量值进行了比较。我们的数据表明，重力负荷增加的影响包括上跳性眼震的衰减时间常数延长以及个体差异导致的持续性上跳性眼震。为了解释这些发现，我们提出了速度存储模型的扩展，将重力作为除角加速度之外的第二种刺激函数。
