Assesses auditory function through the level of the cochlea. Appropriate from birth through adulthood.
Acoustic emissions generated by the outer hair cells in the cochlea are elicited by direct acoustic stimulation and are recorded by a small microphone placed in the ear canal.
Presence of evoked otoacoustic emissions is correlated with hearing thresholds of 30 dB or better.
Sample test results
Because measurement of emissions relies on reverse transduction of sound through the middle ear, presence of middle ear pathology will preclude recording.
Glattke, T. J., & Kujawa, S. G. (1991). Otoacoustic emissions, American Journal of Audiology, 1, 29-40.
Probst, R., Lonsbury-Martin, B. L., & Martin, G. K. (1991). A review of otoacoustic emissions, Journal of the Acoustical Society of America, 89(5), 2027-2067.
Barker, S. E., Lesperance, M. M., & Kileny, P. (2000). Outcome of Newborn Hearing Screening by ABR Compared With Four Different DPOAE Pass Criteria, American Journal of Audiology, 9, 142-148.