[Relationship of distortion product in cochlea with cochlear activity revealed by laser interferometry].

Objective: To study the relationship of distortion product in cochlea with cochlear activity and hearing.

Method: Time variances of distortion product of basilar membrane vibration in vitro guineapig cochlea were observed by laser interferometry.

Result: Within half hour after a cochlea was isolated from a guineapig, distortion product accompanied with two-tone inhibition in cochlea, can be observed.