Contamination of Auditory Evoked Potential of Goldfish Carassius auratus with Microphonic Potential

Abstract

In this experiment, we used sound stimuli of different durations to demonstrate that the auditory evoked potential (AEP) of fishes was contaminated with microphonic potential. We demonstrated that the AEP contained a component that had double the frequency as that of the sound stimulus. The durations of the AEPs were in proportion with the durations of the sound stimuli. “Auditory brainstem response” has been considered to be the dominant component of the AEP of fishes. However, this study suggests that some of the AEP components of fishes are derived from peripheral organs such as the saccule, lagena and utricle in the inner ear.