LASER-INDUCED SOMATOSENSORY EVOKED-POTENTIALS - EVIDENCE OF PHOTOSENSITIVITY IN PERIPHERAL-NERVES
LASER-INDUCED SOMATOSENSORY EVOKED-POTENTIALS - EVIDENCE OF PHOTOSENSITIVITY IN PERIPHERAL-NERVES
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DOI：
10.1016/0006-8993(85)90805-4
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发表时间：
1985-01-01
期刊：
影响因子：
2.9
通讯作者：
AKHANJEE, LK
中科院分区：
文献类型：
--
作者：
WALKER, JB;AKHANJEE, LK
用低功率（1 mW; 632.5 nm）氦氖激光照射人类手腕正中神经上的皮肤，产生在Erb's点获得的体感诱发电位。该诱发电位的潜伏期等于电刺激同一神经后观察到的潜伏期。长时间暴露于激光（20分钟，3.1 Hz）导致较大（10-90%）的电诱发电位的幅度下降。由于这种激光不会产生可检测到的热变化，因此结果意味着光化学反应会改变神经元的活动。
Irradiation of the skin overlying the median nerve at the wrist in humans with a low power (1 mW; 632.5 nm) helium-neon laser produced a somatosensory evoked potential obtained at Erb''s point. This evoked potential had a latency equal to that observed after electrical stimulation of the same nerve. Prolonged exposure to laser (20 min, 3.1 Hz) resulted in a larger (10-90%) decrease in the amplitude of the electrical evoked potential. Since this laser produces no detectable thermal change, the results imply that photochemical reactions alter neuronal activity.