Gyo K, Yanagihara N
Acta Otolaryngol. 1980;90(1-2):25-31. doi: 10.3109/00016488009131694.
Brain stem evoked responses (BSERs) to acoustic and electrical stimulations of the cochlea were compared in guinea pigs. The electric stimuli evoked an averaged response of five to six successive waves within 10 msec, which was similar to that elicited by acoustic stimuli, though the latency of the electrical response was markedly shorter. Moreover, direct electrical stimulation of the auditory nerve evoked the same pattern of response as that elicited by electrical stimulation of the cochlea. On the other hand, stimulation of the vestibular nerve evoked a distinctly different pattern of response that lasted at most for 1.5 msec. Facial nerve stimulation evoked no brain stem response by this procedure. These results suggest that the waves of longer latency over 1.5 msec are available as indicators of auditory activity, even if the response elicited by electrical stimulation of the cochlea might be the sum of auditory and vestibular activities.
在豚鼠中比较了脑干对耳蜗声学和电刺激的诱发反应。电刺激在10毫秒内诱发了五到六个连续波的平均反应，这与声学刺激诱发的反应相似，尽管电反应的潜伏期明显更短。此外，直接电刺激听神经诱发的反应模式与耳蜗电刺激诱发的反应模式相同。另一方面，刺激前庭神经诱发的反应模式明显不同，最多持续1.5毫秒。通过该程序，面神经刺激未诱发脑干反应。这些结果表明，即使耳蜗电刺激诱发的反应可能是听觉和前庭活动的总和，超过1.5毫秒的较长潜伏期波也可作为听觉活动的指标。
