Conijn E A, Brocaar M P, van Zanten G A
Sophia Children's Hospital, Erasmus University, Department of Otorhinolaryngology, Rotterdam, The Netherlands.
Audiology. 1990;29(4):181-95. doi: 10.3109/00206099009072849.
In normal-hearing subjects and in subjects with a flat cochlear hearing loss, auditory brainstem responses (ABR) were recorded at various levels of a 1,000-Hz filtered click stimulus with and without high-pass filtered masking noise. The difference in latency of the major peak in the ABR for the masked and unmasked condition was zero at the ABR threshold. We regard this as proof of the frequency specificity of the 1,000-Hz filtered click-stimulated ABR threshold. The difference between ABR threshold and the subjective puretone threshold at 1,000 Hz amounted to 19 dB in normal-hearing subjects and to 10 dB in subjects with a flat cochlear hearing loss. This is probably related to loss of temporal integration and an abnormal loudness growth (recruitment).
在听力正常的受试者以及患有平坦型耳蜗性听力损失的受试者中，在有和没有高通滤波掩蔽噪声的情况下，以1000赫兹滤波短声刺激的不同强度记录听觉脑干反应（ABR）。在ABR阈值处，掩蔽和未掩蔽条件下ABR主要峰值的潜伏期差异为零。我们将此视为1000赫兹滤波短声刺激的ABR阈值频率特异性的证据。在听力正常的受试者中，ABR阈值与1000赫兹主观纯音阈值之间的差异为19分贝，在患有平坦型耳蜗性听力损失的受试者中为10分贝。这可能与时间整合丧失和响度增长异常（重振）有关。
