Sitizyo K, Suzuki M, Takeuchi T, Saito T
Department of Veterinary Physiology, Faculty of Agriculture, Tottori University, Japan.
Nihon Seirigaku Zasshi. 1993;55(11):456-63.
Visual evoked potentials (VEPs) were obtained from five rabbits. Responses to the photic stimulation were recorded by leading on scalp and dura. Stimulating conditions were changed in order of binocular, monocular (left and right) and screened binocular. The VEP waveforms leading on scalp and dura were composed of five positive and four negative peaks. The amplitude of the VEP leading on dura was about five times larger than that of the VEP leading on scalp. The VEP evoked by the monocular stimulation was characterized by the decreased amplitude in the ipsilateral hemisphere to the stimulated eye. It is furthermore characteristic in the dural recording that the major negative peaks in the early component disappeared in the same side as the stimulated eye. These differences in the VEP evoked by the monocular stimulation might reflect that the most projection of optic nerve cross at the optic chiasm in rabbits.
从五只兔子身上获取了视觉诱发电位（VEP）。通过在头皮和硬脑膜上引导记录对光刺激的反应。刺激条件按照双眼、单眼（左和右）以及遮挡双眼的顺序改变。在头皮和硬脑膜上引导的VEP波形由五个正峰和四个负峰组成。在硬脑膜上引导的VEP幅度大约是在头皮上引导的VEP幅度的五倍。单眼刺激诱发的VEP的特征是在受刺激眼同侧半球的幅度降低。在硬脑膜记录中进一步的特征是早期成分中的主要负峰在受刺激眼的同一侧消失。单眼刺激诱发的VEP的这些差异可能反映出兔子的视神经大部分投射在视交叉处交叉。
