Abstract
This study investigated the accuracy of threshold estimates using the 40-Hz Potential and the SN10 in the presence of elevated low-frequency thresholds. In Experiment 1, subjects with normal hearing were evaluated with ipsilateral low-pass masking to elevate low-frequency thresholds and in Experiment 2, subjects with low-frequency sensory hearing losses were evaluated. The stimuli were 500-, 1500-, and 3000-Hz tone pips. The 40-Hz Potential and the SN10 were equally good predictors of the behavioral threshold when the low-frequency, pure-tone thresholds were elevated.