| Differential effects of ear-canal pressure and contralateral acoustic stimulation on evoked otoacoustic emissions in humans. | |
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MedLine Citation:
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PMID: 1526893 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effect of ear canal pressure variation (ECPV) on click evoked otoacoustic emissions (EOAEs) was compared to the suppressive effect observed with contralateral acoustic stimulation (CAS) in 11 healthy subjects. Both total EOAE amplitude and amplitude of 200 Hz frequency bands (22) were analyzed. Our results revealed that the ECPV as the CAS induced a decrease of the total EOAE amplitude; these two factors showed an additive effect when they are conjoint. The study of the EOAE frequency bands showed that the majority of them decreased under CAS and ECPV; however, a few bands are not affected. Moreover, it appeared that amplitude of the EOAE frequency bands were not modified in a similar way between the two factors: indeed some bands around 4.1 kHz did not decrease either by CAS or ECPV. These results suggest that these applied factors exert different actions on EOAEs. Moreover, the lack of a decrease effect for the same bands, both with CAS and ECPV, may explain the vulnerability of some cochlear locations. |
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Authors:
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E Veuillet; L Collet; A Morgon |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Hearing research Volume: 61 ISSN: 0378-5955 ISO Abbreviation: Hear. Res. Publication Date: 1992 Aug |
Date Detail:
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Created Date: 1992-10-22 Completed Date: 1992-10-22 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 7900445 Medline TA: Hear Res Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 47-55 Citation Subset: IM |
Affiliation:
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Université Claude Bernard, Hôpital Edouard Herriot, Lyon, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation* Adult Cochlea / physiology* Ear Canal / physiology* Evoked Potentials, Auditory / physiology* Female Humans Male Pressure |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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