Hooper R E, Bergholtz L M, Mehta D C
Scand Audiol. 1977;6(2):99-104. doi: 10.3109/01050397709045005.
Using the technique of electrocochleography with transtympanic electrode placement, it is possible to estimate behavioral thresholds from AP data for a acoustic stimulus. The correlation between behavioril and AP "thresholds" for the same stimulus was statistically significant and there was a better correlation for subjects with a mild hearing loss than for those with normal hearing or larger degrees of hearing loss (as determined by the pure tone average). Larger amplitudes of the AP at the maximum stimulus level tended to be associated with a more accurate threshold estimation. The AP "thresholds" showed best correlation with the pure tone audiometric thresholds at 1 000 Hz, at other tone frequencies the correlation was poorer. This agrees with the spectral contents of the click.
采用经鼓膜电极放置的耳蜗电图技术，可以根据声刺激的听神经动作电位（AP）数据估算行为阈值。同一刺激的行为阈值与AP“阈值”之间的相关性具有统计学意义，与听力正常或听力损失程度较大（由纯音平均听阈确定）的受试者相比，轻度听力损失受试者的相关性更好。最大刺激水平下AP的较大振幅往往与更准确的阈值估计相关。AP“阈值”与1000Hz纯音听力计阈值的相关性最佳，在其他音调频率下相关性较差。这与短声的频谱内容相符。
