Borg E, Odman B
Acta Otolaryngol. 1979 May-Jun;87(5-6):421-8. doi: 10.3109/00016487909126445.
The time course of decay and recovery of ipsilateral and contralateral stapedius reflex responses to 2 000 Hz pure tone stimulation was studied in 10 normal-hearing subjects. Reflex responses were found to follow a closely similar time course with respect to both decay and recovery in simultaneous bilateral recordings. The similarity is compatible with the assumption that decay and recovery originate in the afferent auditory system, and not in the muscles. Recovery was 50% complete 250 ms after the end of the stimulus and most subjects had reached their initial amplitude after 1-3 s. The individual correlation between decay and recovery was negative but weak, which is interpreted as showing that these processes have a tendency to balance each other, but are based partly on different mechanisms. The implications of the present results for diagnosis of disorders of the lower auditory system as well as for the evaluation of the protective role of the stapedius reflex against noise damage are pointed out.
对10名听力正常的受试者进行了研究，观察了同侧和对侧镫骨肌反射对2000Hz纯音刺激的衰减和恢复的时间过程。在同时进行的双侧记录中，发现反射反应在衰减和恢复方面遵循非常相似的时间过程。这种相似性与衰减和恢复起源于传入听觉系统而非肌肉的假设相符。刺激结束后250毫秒，恢复完成50%，大多数受试者在1-3秒后达到初始幅度。衰减和恢复之间的个体相关性为负但较弱，这被解释为表明这些过程有相互平衡的趋势，但部分基于不同的机制。指出了本研究结果对下听觉系统疾病诊断以及对镫骨肌反射对噪声损伤的保护作用评估的意义。
