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Friday, February 8 • 10:35am - 10:55am
The Future Is Now: Eight Ways Otoacoustic Emissions Can Be Used to Advance Hearing Conservation Programs

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Otoacoustic emission (OAE) testing and forward-pressure level calibration are on the cusp of revolutionizing evaluation of auditory damage in hearing-conservation programs (HCPs). HCPs rely on pure-tone audiometry (PTA), which has not seen a significant technological advance for decades. Technology now exists to increase the validity and reliability of PTA and OAEs, and to add objective evaluation of outer-hair-cell status, all of which could be used to reduce the prevalence of noise-induced hearing loss. We have identified 8 ways where OAEs can advance HCPs (often in conjunction with audiometry), including: evaluating the overall success of HCPs and of specific interventions for groups within shorter time frames than audiometry, detecting preclinical noise-induced change in the inner ear, efficiently tracking recovery from temporary threshold shift, predicting permanent-threshold-shift susceptibility or risk by early identification of low-level OAEs in normal-hearing ears, predicting permanent threshold shift susceptibility or risk with medial-olivocochlear testing via an OAE protocol, estimating hearing status in those unable to respond, evaluating suspected functional hearing loss, and educating personnel about inner-ear damage. Furthermore, forward-pressure level calibration improves not only the reliability of OAE measurements but PTA measurements as well, especially at those frequencies most vulnerable to noise damage.


Lynne Marshall, Ph.D.

University of Connecitcut
Lynne Marshall was a Senior Scientist for the Naval Submarine Medical Research Laboratory for over 30 years before retiring in 2015. She specialized in hearing conservation with an emphasis on using otoacoustic emission (OAE) testing to help prevent hearing loss. In 2015 she was awarded... Read More →


Friday February 8, 2019 10:35am - 10:55am PST
Grapevine A