Hashimoto I
Department of Neurosurgery, Tokyo Metropolitan Hospital of Fuchu, Japan.
Ann Neurol. 1988 Apr;23(4):332-8. doi: 10.1002/ana.410230404.
Trigeminal somatosensory evoked potentials (TSEPs) were studied by using fast-rising air puffs generated by a high-speed air control system. Within 100 ms, air puff stimulation of the face elicited three negative and three positive components over the contralateral, as well as the ipsilateral, sensory area. The air puff TSEPs showed a uniform change in peak latencies and amplitudes as a function of stimulus intensity. The bilateral distribution of the TSEPs stands in sharp contrast to the exclusively contralateral distribution of the SEPs to stimulation of the hand. Air puffs evoked a larger response than electrical stimulation, although the latency remained the same. Unlike electrical stimuli, air puff induces neither stimulus nor muscle artifacts. This, combined with the higher amplitude of the recorded response, enhances the signal-to-noise ratio.
采用高速空气控制系统产生的快速上升气流来研究三叉神经体感诱发电位（TSEP）。在100毫秒内，对面部进行气流刺激会在对侧以及同侧感觉区域诱发三个负波成分和三个正波成分。气流诱发的TSEP的峰潜伏期和波幅随刺激强度呈现出一致的变化。TSEP的双侧分布与刺激手部时体感诱发电位（SEP）仅对侧分布形成鲜明对比。尽管潜伏期相同，但气流诱发的反应比电刺激诱发的反应更大。与电刺激不同，气流既不会诱发刺激伪迹也不会诱发肌肉伪迹。这一点，再加上记录到的反应波幅更高，提高了信噪比。
