The 40-Hz potential and SN10 as measures of low-frequency thresholds.
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 3,000-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.
Fowler
C G
CG
Veterans Administration Medical Center, Long Beach, California.
Swanson
M R
MR
D000328:Adult; D001300:Audiometry, Evoked Response / Q000379:methods*; D001309:Auditory Threshold; D005072:Evoked Potentials, Auditory; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis*; D006801:Humans; D008875:Middle Aged; D010470:Perceptual Masking