| Mechanisms of mammalian otoacoustic emission and their implications for the clinical utility of otoacoustic emissions. | |
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MedLine Citation:
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PMID: 15064654 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We review recent progress in understanding the physical and physiological mechanisms that generate otoacoustic emissions (OAEs). Until recently, the conceptual model underlying the interpretation of OAEs has been an integrated view that regards all OAEs as manifestations of cochlear nonlinearity. However, OAEs appear to arise by at least two fundamentally different mechanisms within the cochlea: nonlinear distortion and linear reflection. These differences in mechanism have be used to construct a new taxonomy for OAEs that identifies OAEs based on their mechanisms of generation rather than the details of their measurement. The mechanism-based taxonomy provides a useful conceptual framework for understanding and interpreting otoacoustic responses. As commonly measured in the clinic, distortion-product and other evoked OAEs comprise a mixtures of emissions produced by both mechanisms. This mixing precludes any fixed correspondence with the conventional, measurement-based nomenclature. We discuss consequences of the taxonomy for the clinical measurement and interpretation of OAEs. |
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Authors:
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Christopher A Shera |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S.; Review |
Journal Detail:
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Title: Ear and hearing Volume: 25 ISSN: 0196-0202 ISO Abbreviation: Ear Hear Publication Date: 2004 Apr |
Date Detail:
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Created Date: 2004-04-05 Completed Date: 2004-09-13 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8005585 Medline TA: Ear Hear Country: United States |
Other Details:
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Languages: eng Pagination: 86-97 Citation Subset: IM |
Affiliation:
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Eaton-Peabody Laboratory of Auditory Physiology, Massachusetts Eye & Ear Infirmary, and Department of Otology & Laryngology, Harvard Medical School, Boston, Massachusetts 02114, USA. shera@epl.meei.harvard.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation* Animals Hearing Disorders / diagnosis* Hearing Tests* / methods Humans Linear Models Mammals / physiology* Nonlinear Dynamics Otoacoustic Emissions, Spontaneous / physiology* |
| Grant Support | |
ID/Acronym/Agency:
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DC03687/DC/NIDCD NIH HHS |
| Comments/Corrections | |
Erratum In:
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Ear Hear. 2004 Jun;25(3):308 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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