Carolina Abdala

Carolina Abdala

Carolina Abdala, PhD, is a professor in the Caruso Department of Otolaryngology at the University of Southern California in Los Angeles, California.

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Otoacoustic Emissions: Toward an Updated Approach

Otoacoustic emissions (OAEs), low-level sounds produced by the healthy cochlea, require normal or near-normal outer hair cells (OHCs) to provide amplification of the backward traveling waves so the outgoing energy can be detected in the ear canal and, for some types of OAEs, to produce the nonlinearities that give rise to the emission itself. As most audiologists know, these low-level acoustic by-products provide an invaluable window into the otherwise inaccessible cochlea and a useful gauge of OHC health and hearing. 

Topic(s): otoacoustic emissions (OAEs), Hearing