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用计算机叠加平均和脑干神经核团立体定位技术记录１０只豚鼠耳蜗核内听觉诱发电位（ＣＮ－ＡＥＰ）。对ＣＮ－ＡＥＰ时域波形中主波的潜伏期、振幅进行分析，并与豚鼠脑干听觉诱发电位（ＢＡＥＰ）时域波形进行比较，认为ＣＮ－ＡＥＰ是ＢＡＥＰⅡ波的主要成分。用自回归模型谱（ＡＲ谱）估计及数字滤波技术对ＣＮ－ＡＥＰ行频域分析，发现豚鼠ＣＮ－ＡＥＰ的频谱成分主要在１０００Ｈｚ以下，在ＡＲ谱图上有３个峰，Ｆ０、Ｆ１和Ｆ２，谱峰分别位于１８０、７１０、１２００Ｈｚ左右，略高于豚鼠ＢＡＥＰ的相应谱峰频率，其原因尚待进一步探讨。
The nucleus auditory evoked potentials (CN-AEP) of cochlea of 10 guinea pigs were recorded by computer averaging and brainstem nucleus stereotaxic technique. The latency and amplitude of the main wave in the CN-AEP time-domain waveform were analyzed and compared with the time-domain waveform of the guinea pig brainstem auditory evoked potential (BAEP). CN-AEP was considered as the main component of BAEPⅡ wave. Using autoregressive model (AR) estimation and digital filtering techniques, we found that the spectral components of CN-AEP in guinea pigs are mainly below 1000Hz, and there are three peaks in the AR spectrum, F0, F1 and F2, the peak is located at 180,710,1200 Hz, respectively, slightly higher than the corresponding peak frequency of guinea pig BAEP, the reasons remain to be further explored.