Brown A M, Kemp D T
Hear Res. 1985;19(3):191-8. doi: 10.1016/0378-5955(85)90138-8.
Acoustic and cochlear microphonic (CM) distortion products (DPs) have been measured at the meatus and round window, respectively, in the gerbil. It was hoped to deduce the relationship between round window CM distortion and vibrational energy of cochlear origin recorded as acoustic DP emissions in the meatus. Five different distortion components have been studied. For moderate intensities of stimulation, correlation between ear canal acoustic and CM distortion signals in respect of level and delay provides evidence of a common transmission path. One explanation of this is that the CM is being generated as a direct result of cochlea-generated vibration which reaches the base of the cochlea. The basalward propagation of these signals is discussed.
在沙鼠中,分别在耳道和圆窗处测量了声学畸变产物和耳蜗微音(CM)畸变产物。希望能推断出圆窗CM畸变与耳道中记录为声学DP发射的耳蜗源振动能量之间的关系。研究了五种不同的畸变成分。对于中等强度的刺激,耳道声学信号和CM畸变信号在电平与延迟方面的相关性提供了共同传输路径的证据。对此的一种解释是,CM是由到达耳蜗底部的耳蜗产生的振动直接产生的。讨论了这些信号向基底的传播。