Show simple item record

dc.contributorWichita State University. Department of Communication Sciences and Disordersen_US
dc.contributor.authorSun, Xiao-Mingen_US
dc.date.accessioned2012-02-29T18:34:37Z
dc.date.available2012-02-29T18:34:37Z
dc.date.issued2008-03en_US
dc.identifier18258398en_US
dc.identifier7900445en_US
dc.identifierS0378-5955(07)00296-1en_US
dc.identifier.citationHearing research. 2008 Mar; 237(1-2): 66-75.en_US
dc.identifier.issn0378-5955en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.heares.2007.12.004en_US
dc.identifier.urihttp://hdl.handle.net/10057/4686
dc.descriptionClick on the DOI link below to access the article (may not be free).en_US
dc.description.abstractDistortion product otoacoustic emissions (DPOAEs) were measured in the absence and presence of contralateral noise at five levels--below, equal to, and above the middle-ear muscle (MEM) reflex threshold. The resultant changes in DPOAE level and phase were dependent on stimulus frequency and noise level. Both low-level noise, believed to elicit the medial olivocochlear (MOC) reflex, and high-level noise, thought to activate both MOC and MEM reflexes, significantly decreased the DPOAE level. However, the shift from sole MOC effect to mixed MOC and MEM effects was not as dramatic as we thought. While low-level noise resulted in a minimum DPOAE phase change, high-level noise caused a substantial phase lead for 1 and 2kHz. With increasing frequency, phase lag became more notable. The present study suggests the following: (1) DPOAE contralateral suppression by low-level sound most likely does not involve the effect of the MEM reflex and signal crossover; and (2) combined analysis of DPOAE level and phase changes warrants further investigations to overcome the difficulty in separating the effects of MOC efferents and MEM contraction. The results also imply that OAE measurement has the potential for being used to investigate the effect of the MEM reflex on sound transmission.en_US
dc.format.extent66-75en_US
dc.language.isoengen_US
dc.publisherElsevier BVen_US
dc.relation.ispartofseriesHearing Researchen_US
dc.relation.ispartofseriesHear. Res.en_US
dc.sourceNLMen_US
dc.subjectResearch Support, Non-U.S. Gov'ten_US
dc.subject.meshAdulten_US
dc.subject.meshCochlea/physiologyen_US
dc.subject.meshEar, Middle/physiologyen_US
dc.subject.meshFemaleen_US
dc.subject.meshFunctional Laterality/physiologyen_US
dc.subject.meshHearing/physiologyen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshOlivary Nucleus/physiologyen_US
dc.subject.meshOtoacoustic Emissions, Spontaneous/physiologyen_US
dc.subject.meshPerceptual Distortion/physiologyen_US
dc.subject.meshReflex, Acoustic/physiologyen_US
dc.titleContralateral suppression of distortion product otoacoustic emissions and the middle-ear muscle reflex in human earsen_US
dc.typeArticleen_US
dc.coverage.spacialNetherlandsen_US
dc.description.versionpeer revieweden_US
dc.rights.holderCopyright © 2008 Elsevieren_US


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record