Stephan K, Welzl-Müller K, Stiglbrunner H
Clinic for Hearing, Speech, and Voice Disorders, University of Innsbruck, Austria.
Am J Otol. 1991;12 Suppl:48-51.
Stapedius reflexes were tested in 21 deaf patients with the Vienna cochlear implant using intra- or extracochlear electrodes. Sinusoidal bursts of 125, 500, 1,000 and 2,000 Hz were used as stimuli presented in a randomized sequence. The contralateral acoustic reflex was monitored by synchronized sampling of the acoustic impedance of the ear. Results obtained were compared to psychoacoustic sensation values. The reflex threshold always was located close to the uncomfortable loudness level within the subjective dynamic range, or at least above the most comfortable loudness level. Practical applications of reflex testing and limitations of the method for use in children are discussed.
使用鼓阶内或鼓阶外电极，对21名植入维也纳耳蜗的聋人患者进行了镫骨肌反射测试。以125、500、1000和2000Hz的正弦脉冲作为刺激，按随机顺序呈现。通过同步采样耳朵的声阻抗来监测对侧听觉反射。将获得的结果与心理声学感觉值进行比较。反射阈值总是位于主观动态范围内接近不舒服响度水平的位置，或者至少高于最舒适响度水平。讨论了反射测试的实际应用以及该方法在儿童中使用的局限性。
