Nakajima H H, Olson E S, Mountain D C, Hubbard A E
Department of Biomedical Engineering, Boston University, Massachusetts 02215.
J Acoust Soc Am. 1994 Aug;96(2 Pt 1):786-94. doi: 10.1121/1.410316.
Electrically evoked otoacoustic emissions were measured with current delivered to the second and third turns of the gerbil cochlea. The emission magnitude and phase are dependent on the characteristic frequency (CF) of the stimulating microelectrode location. The death of the animal resulted in an initial increase in emission below the CF of the electrode location and a decrease in emission near the CF of the electrode location. The group delay of the electrically evoked emission phase data is twice as large as the acoustically evoked cochlear microphonic (CM) data obtained by Schmiedt and Zwislocki [J. Acoust. Soc. Am. 61, 133-149 (1977)]. This suggests the possibility of two separate propagation modes for the forward and reverse traveling waves.
通过向沙鼠耳蜗的第二和第三圈施加电流来测量电诱发耳声发射。发射幅度和相位取决于刺激微电极位置的特征频率（CF）。动物死亡导致电极位置CF以下的发射最初增加，而电极位置CF附近的发射减少。电诱发发射相位数据的群延迟是Schmiedt和Zwislocki [《美国声学学会杂志》61, 133 - 149 (1977)] 所获得的声诱发耳蜗微音（CM）数据的两倍。这表明正向和反向行波可能存在两种独立的传播模式。
