Mameli O, Tolu E
Exp Neurol. 1985 Nov;90(2):341-9. doi: 10.1016/0014-4886(85)90023-8.
Photic stimulation of the retina elicits in the mediocaudal part of the XIIth nucleus the appearance of pronounced field potentials and responses of single hypoglossal units. The latency of the evoked potentials, characterized by a complex sequence of positive-negative waves, was 32.75 +/- 2.5 ms for the initial component p1, 42.25 +/- 3.30 ms for n1, 49.75 +/- 3.09 ms for p2, and 67 +/- 3.94 ms for n2. The hypoglossal neurons, antidromically identified by electrical stimulation of the XIIth nerve, responded with several combinations of excitation-inhibition at various latencies. Nineteen percent of the units responded to both retinae and 10% only to one retina, mainly to the contralateral one. As the mediocaudal part of the hypoglossal nucleus receives vestibular information, it can be concluded that the hypoglossal units adjust their firing in relation to head position and also by using visual information.
视网膜的光刺激在第十二核的中尾部引发明显的场电位和单个舌下神经单位的反应。诱发电位的潜伏期以正负波的复杂序列为特征，初始成分p1为32.75±2.5毫秒，n1为42.25±3.30毫秒，p2为49.75±3.09毫秒，n2为67±3.94毫秒。通过对第十二神经的电刺激逆向鉴定的舌下神经神经元，在不同潜伏期以兴奋-抑制的几种组合做出反应。19%的单位对双侧视网膜都有反应，10%仅对一侧视网膜有反应，主要是对侧视网膜。由于舌下神经核的中尾部接收前庭信息，可以得出结论，舌下神经单位根据头部位置并通过利用视觉信息来调整其放电。
