Sammeth C A, Barry S J
Scand Audiol. 1985;14(1):51-5. doi: 10.3109/01050398509045922.
Estimates of behavioral threshold using the 40-Hz Event-Related Potential (ERP) were obtained on sixteen normal subjects at frequencies of 500, 1000, 2000, and 4000 Hz, and compared with behavioral thresholds for the same stimuli. The mean differences were within 10 dB at the three lowest frequencies. The mean difference at 4000 Hz was 16 dB. Peak amplitude of the response did not vary significantly either with signal amplitude or test frequency, but the latency of the response varied significantly with frequency. Factors which may affect the reliability and validity of the 40-Hz ERP are discussed.
使用40赫兹事件相关电位（ERP）对16名正常受试者在500、1000、2000和4000赫兹频率下进行行为阈值估计，并与相同刺激的行为阈值进行比较。在三个最低频率下，平均差异在10分贝以内。4000赫兹时的平均差异为16分贝。反应的峰值幅度随信号幅度或测试频率均无显著变化，但反应潜伏期随频率有显著变化。文中讨论了可能影响40赫兹ERP可靠性和有效性的因素。
