Serra R, Delgado-García J M
Rev Esp Fisiol. 1980 Dec;36(4):457-61.
The activity of abducens and accessory abducens motoneurons (Mns) has been recorded during spontaneous and vestibularly or visually induced eye movements in awake cats. Motoneuronal activity was also recorded during corneal reflexes induced by the excitation of trigeminal terminals in the orbit. Recorded Mns were antidromically identified by electrical stimulation of the VI nerve. Accessory abducens Mns showed a burst of activity in response to trigeminal stimulation, but they did not show any response in relation to horizontal, vertical and/or oblique eye movements. On the contrary, abducens Mns firing activities were related to the position and velocity of the eye in the horizontal plane, without showing any change in their firing patterns in response to trigeminal stimulation in the orbit.
在清醒猫的自发、前庭或视觉诱发眼动过程中,已记录了展神经和副展神经运动神经元(MNs)的活动。在眼眶内三叉神经末梢兴奋诱发角膜反射时,也记录了运动神经元的活动。通过电刺激Ⅵ神经对记录到的MNs进行逆向鉴定。副展神经MNs对三叉神经刺激有一阵活动爆发,但它们对水平、垂直和/或斜向眼动没有任何反应。相反,展神经MNs的放电活动与眼球在水平面内的位置和速度有关,对眼眶内三叉神经刺激的放电模式没有任何变化。