Rutten W L
Hear Res. 1980 Jun;2(3-4):263-71. doi: 10.1016/0378-5955(80)90062-3.
Input--output amplitude behaviour of evoked acoustic emissions ('echoes') to click- and toneburst stimuli can be approximated by R(tau) alpha SPT(tau) where R is response amplitude, S stimulus amplitude and p(tau) is an exponent dependent on latency tau. p(tau) varies linearly from one to zero for post stimulus times (PST) between 5 and about 25 ms, thus indicating increasing nonlinearity with increasing latency. Latencies of echoes after toneburst stimulation decrease with increasing frequency. The latencies seem to be built up from twice the traveling wave time (from the acoustic source to the cochlear partition site of reception) plus twice the transduction filter response times. Adaptative behaviour of the echo-response on varying interstimulus interval (ISI) is not observed. If echoes are present, with frequency fECHO, audiogram losses at fECHO do not exceed 15 dB. Compound action potential (AP) thresholds, obained by electrocohleography (ECoG) confirm this 15 dB criterion and indicate that the 15 dB loss should be of cochlear origin.
对短声和短纯音刺激诱发的声发射（“回声”）的输入-输出幅度行为可以用R(τ)∝SPT(τ)来近似，其中R是反应幅度，S是刺激幅度，p(τ)是一个依赖于潜伏期τ的指数。对于刺激后时间（PST）在5到约25毫秒之间，p(τ)从1线性变化到0，因此表明随着潜伏期增加非线性增加。短纯音刺激后回声的潜伏期随频率增加而减小。这些潜伏期似乎由行波时间（从声源到耳蜗接收分区部位）的两倍加上转导滤波器响应时间的两倍构成。未观察到回声反应对不同刺激间隔（ISI）的适应性行为。如果存在回声，其频率为fECHO，在fECHO处的听力图损失不超过15分贝。通过耳蜗电图（ECoG）获得的复合动作电位（AP）阈值证实了这15分贝的标准，并表明这15分贝的损失应为耳蜗起源。
