Derived ABR by Using Pure-Tone Masking

Abstract

Derived ABR was obtained at four frequencies (0.5kHz, 1kHz, 2kHz and 4kHz) by using pure-tone masking. It was observed that the component, W6 showed significantly larger amplitude in 1kHz derived ABR than in 2kHz and 4kHz derived ABR's and W7 showed significantly larger amplitude in 0.5kHz derived ABR than in 2kHz and 4kHz derived ABR, suggesting the frequency specificity of these componets.
From the results obtained, it was confirmed that waves W6 and W7 represent the activity initiated from low-frequency regions along the cochlear partition.