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Otoacoustic emissions, their origin in cochlear function, and use.
1UCL Centre for Auditory Research, Institute of Laryngology and Otology, London, UK.
British Medical Bulletin
|September 27, 2002
Summary
Otoacoustic emissions (OAEs) are sounds from the cochlea, offering a non-invasive way to assess hearing. OAE screening is vital for newborn hearing tests and diagnosing various auditory conditions.
Area of Science:
- Audiology
- Otoacoustic Emissions
- Cochlear Physiology
Background:
- Otoacoustic emissions (OAEs) are sounds generated by the cochlea.
- They originate from the motion of sensory hair cells in response to auditory stimuli.
- OAEs serve as an objective, non-invasive measure of cochlear function.
Purpose of the Study:
- To provide a comprehensive introduction to OAEs and their diverse applications.
- To detail the relationship between OAEs and the underlying cochlear mechanisms.
- To highlight the significance of OAEs in audiological diagnostics and research.
Main Methods:
- Recording sounds from the ear canal using a microphone.
- Analyzing otoacoustic emissions as indicators of cochlear activity.
- Utilizing OAEs in audiological test batteries and screening programs.
Main Results:
- OAEs are a reliable indicator of healthy cochlear function.
- OAE screening is integral to universal newborn hearing screening.
- OAEs aid in differential diagnosis, treatment monitoring, and hearing aid selection.
Conclusions:
- OAEs offer valuable insights into intracochlear processes.
- They contribute to understanding cochlear mechanisms and sensory hearing impairment.
- OAEs are a crucial tool in audiology for both clinical and research purposes.