Reliability of cochlear microphonics in clinical electrocochleography.
A study was made on the reliability of cochlear microphonics (CM) recorded in clinical electrocochleography (ECochG) by the transtympanic electrode technique. In normal-hearing subjects, the CM shift increased as the frequency was lowered at the same sound pressure, and as the sound pressure was lowered at the same frequency. The CM shift for the frequencies from 8 to 0.5 kHz was greater as the sound pressure was lowered. The above results suggest that clinical ECochG CM responses may well reflect the potential of the cochlea.
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D001300:Audiometry, Evoked Response; D003055:Cochlear Microphonic Potentials; D005072:Evoked Potentials, Auditory; D003639:Hearing Loss, Sudden / Q000503:physiopathology; D006801:Humans; D008297:Male