Pratt H, Martin W H, Bleich N, Zaaroor M, Schacham S E
Evoked Potentials Laboratory, Technion-Israel Institute of Technology, Haifa.
Electroencephalogr Clin Neurophysiol. 1994 Sep;92(5):469-72. doi: 10.1016/0168-5597(94)90025-6.
The few studies that have been done on short-latency, subcortical visual evoked potentials (SVEPs) have all used stroboscopic flashes as the evoking stimulus. The dimensions of the stimulator, the acoustical artifacts and the photic spread to the examination room limited the use of SVEPs to research laboratories. With the advent of high-efficiency light-emitting diodes (LEDs), high-intensity flashes can now be generated from goggle-mounted LEDs. In this study, a goggle-mounted high-intensity stimulator was constructed and its flashes used to evoke SVEPs. The reproducibility of SVEPs across subjects and the ease of using the high-intensity LED flash stimulator make them a promising candidate for testing subcortical visual pathway function in the operating room.
少数针对短潜伏期皮层下视觉诱发电位（SVEPs）的研究均采用频闪闪光作为诱发刺激。刺激器的尺寸、声学伪迹以及光扩散到检查室等因素限制了SVEPs仅在研究实验室中使用。随着高效发光二极管（LED）的出现，现在可以通过安装在护目镜上的LED产生高强度闪光。在本研究中，构建了一种安装在护目镜上的高强度刺激器，并用其闪光来诱发SVEPs。SVEPs在不同受试者之间的可重复性以及使用高强度LED闪光刺激器的便捷性，使其成为在手术室中测试皮层下视觉通路功能的一个有前景的选择。
