Neverov V P, Bures J
Electroencephalogr Clin Neurophysiol. 1977 Apr;42(4):536-42. doi: 10.1016/0013-4694(77)90217-6.
Six rabbits with implanted electrodes in visual cortex, lateral geniculate body, superior colliculus and the mesodiencephalic nystagmogenic centres were exposed to 90 min optokinetic stimulation, followed by 30 to 60 min observation of reversed postoptokinetic nystagmus (RPN) in darkness. The oculographically recorded nystagmus was used to trigger a LINC 8 computer programmed for perisaccadic EEG averaging and for examination of excitability of visual centres by flashes applied at different intervals after the saccade onset. Whereas optokinetic nystagmus (OKN) was accompanied by marked electrical potentials appearing at all recording sites during and for about 100 msec after the saccade, these potentials were considerably attenuated or absent during RPN. Visual evoked responses to flashes applied during the OKN saccades were considerably smaller than responses to flashes delayed by 130-200 msec. No saccadic suppression was observed when the same visual stimuli were applied during RPN saccades in darkness. It is concluded that eye movements generated in the absence of external stimuli during RPN elicit only weak corollary discharge.
六只在视皮层、外侧膝状体、上丘和中脑间脑眼球震颤发生中枢植入电极的兔子，先接受90分钟的视动刺激，随后在黑暗中观察30至60分钟的反向视动后眼震（RPN）。用眼震电图记录的眼震来触发一台LINC 8计算机，该计算机被编程用于扫视周围脑电图平均，并通过在扫视开始后不同间隔施加闪光来检查视觉中枢的兴奋性。视动性眼震（OKN）在扫视期间及扫视后约100毫秒内在所有记录部位都伴有明显的电位，而这些电位在RPN期间明显减弱或消失。在OKN扫视期间施加闪光所诱发的视觉诱发电位比延迟130 - 200毫秒施加闪光所诱发的反应要小得多。当在黑暗中的RPN扫视期间施加相同的视觉刺激时，未观察到扫视抑制。结论是，在RPN期间无外部刺激时产生的眼球运动仅引发微弱的伴随放电。
