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The Effect Of Wideband And Narrowband Noise On The Olivocochlear Bundle And The Cochlear Microphonic, Catherine Nicole Palmietto
The Effect Of Wideband And Narrowband Noise On The Olivocochlear Bundle And The Cochlear Microphonic, Catherine Nicole Palmietto
MSU Graduate Theses
In humans, activation of the olivocochlear bundle (OCB) can have a suppression or enhancement effect on cochlear processes. This phenomenon was studied via OCB activation effects on otoacoustic emissions (OAEs). However, it has been suggested that cochlear microphonics (CMs) can provide better, more detailed information regarding OCB function. In the present study, 22 normal hearing female subjects between the ages of 18-30 were recruited and the OCB was examined via the recording of CMs under changes in three conditions: OCB activating noise, stimulus polarity and stimulus frequency. Specifically, the present study examines the effects of activating wideband noise and narrowband …