Andersson T, Sidén A
Department of Clinical Neurophysiology, Huddinge University Hospital, Sweden.
Electroencephalogr Clin Neurophysiol. 1994 Nov;92(6):473-9. doi: 10.1016/0168-5597(94)90130-9.
Visual evoked potentials elicited by reversal of a checkerboard pattern constructed of square, red light-emitting diodes (LEDs) were compared with a conventional black and white pattern displayed on a TV monitor in control subjects and in 71 patients with established or suspected multiple sclerosis. Both stimuli elicited distinct responses in the control groups: the latencies were longer with LED stimulation while the amplitudes of the various components were differently altered. The frequency of abnormal responses among the patients was higher with LED stimulation than with TV stimulation, but the highest diagnostic yield was obtained when both methods were combined.
在对照组以及71例确诊或疑似多发性硬化症的患者中，比较了由方形红色发光二极管（LED）构成的棋盘格图案翻转所诱发的视觉诱发电位与电视监视器上显示的传统黑白图案所诱发的视觉诱发电位。两种刺激在对照组中均引发了明显的反应：LED刺激时潜伏期更长，而各个成分的波幅变化不同。与电视刺激相比，患者中LED刺激诱发的异常反应频率更高，但两种方法联合使用时诊断率最高。
