Usami S, Igarashi M, Ishii M, Hozawa J
Department of Otorhinolaryngology and Communicative Sciences Baylor College of Medicine, Houston, Texas.
Acta Otolaryngol. 1988 Jul-Aug;106(1-2):124-9. doi: 10.3109/00016488809107379.
Twenty clockwise (CW) angular stimulations were given daily to squirrel monkeys over a 14-calendar day period. The gain of vestibulo-ocular reflex (VOR) to CW angular acceleration decreased after each daily session. Particularly, the maximum reduction of VOR was found after the first day's session. The reduction was retained until the time of the next day's session. But, the across-day course of the VOR reduction showed up-and-down sinusoidal patterns in all animals. With respect to the effect on optokinetic nystagmus (OKN), an increase of counter-clockwise (CCW) OK responses after repeated CW vestibular stimulations was found; however, there was no clear retention of this response modification across daily sessions.
在14个日历日的时间段内，每天对松鼠猴进行20次顺时针（CW）角刺激。每天的刺激 session 后，前庭眼反射（VOR）对CW角加速度的增益都会降低。特别是，第一天的 session 后发现VOR的最大降幅。这种降幅一直保持到第二天 session 时。但是，所有动物的VOR降幅的跨日过程都呈现出上下正弦模式。关于对视动性眼震（OKN）的影响，发现重复CW前庭刺激后逆时针（CCW）OK反应增加；然而，这种反应改变在每日 session 之间没有明显的保留。
