Suppression of Otoacoustic Emissions: An Overview Otoacoustic emissions (OAEs) are tiny acoustic signals that can be measured in the ear canal using a sensitive microphone. They are believed to be a byproduct of outer hair cell electro-motility and are a reflection of the active process in the cochlea. This active process is responsible for low level ... Article
Article  |   August 01, 2008
Suppression of Otoacoustic Emissions: An Overview
Author Affiliations & Notes
  • David S. Velenovsky
    Department of Speech, Language and Hearing Sciences, University of Arizona, Tucson, AZ
Article Information
Hearing & Speech Perception / Hearing Disorders / Articles
Article   |   August 01, 2008
Suppression of Otoacoustic Emissions: An Overview
SIG 6 Perspectives on Hearing and Hearing Disorders: Research and Diagnostics, August 2008, Vol. 12, 4-16. doi:10.1044/hhd12.1.4
SIG 6 Perspectives on Hearing and Hearing Disorders: Research and Diagnostics, August 2008, Vol. 12, 4-16. doi:10.1044/hhd12.1.4
Abstract

Otoacoustic emissions (OAEs) are tiny acoustic signals that can be measured in the ear canal using a sensitive microphone. They are believed to be a byproduct of outer hair cell electro-motility and are a reflection of the active process in the cochlea. This active process is responsible for low level threshold sensitivity and sharp frequency tuning of the mammalian ear. Many investigators have shown that these emissions can be suppressed by acoustic stimulation of the ipsilateral and contralateral ears. These suppression effects are believed to be mediated by medial olivocochlear efferents, a component of the olivocochlear bundle. This article is an introduction to suppression, the anatomy and physiology of the auditory efferent system and its affect on outer hair cell activity.

Become a SIG Affiliate
Pay Per View
Entire SIG 6 Perspectives on Hearing and Hearing Disorders: Research and Diagnostics content & archive
24-hour access
This Issue
24-hour access
This Article
24-hour access
We've Changed Our Publication Model...
The 19 individual SIG Perspectives publications have been relaunched as the new, all-in-one Perspectives of the ASHA Special Interest Groups.