Effect of hearing loss and age on human cochlear traveling wave delay

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dc.contributor.advisorKimberley, Barry P.
dc.contributor.authorRamotowski, D. H. (Danny H.)
dc.date.accessioned2005-07-29T22:04:33Z
dc.date.available2005-07-29T22:04:33Z
dc.date.issued1995
dc.descriptionBibliography: p. 81-86.en
dc.description.abstractThe cochlear traveling wave delay can be derived from distortion product emission (DPE) phase measurements [Kimberley et al., 1993]. By testing ears with mild cochlear hearing damage as well as ears with normal hearing thresholds (~25 dB SPL, ANSI 1969), it was shown that cochlear latencies measured in this way are not significantly affected by hearing loss. Traveling wave delay however does increase slightly with age. Optimal f2/ fi ratio and associated DPE amplitude were also tested for age or threshold effects. The f2/fi ratio remained unaffected by age or hearing loss, but decreased with increasing frequency. The maximum DPE amplitude decreased with both advancing age and with increasing pure-tone threshold, so it was impossible to isolate the contribution of each individual factor. The linearity between maximum DPE amplitude and threshold, at the frequencies tested, shows potential for clinical use.
dc.format.extentxi, 108 leaves ; 30 cm.en
dc.identifier.citationRamotowski, D. H. (1995). Effect of hearing loss and age on human cochlear traveling wave delay (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/24192en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/24192
dc.identifier.isbn0612043134en
dc.identifier.lccRF 291 R36 1995en
dc.identifier.urihttp://hdl.handle.net/1880/29664
dc.language.isoeng
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subject.lccRF 291 R36 1995en
dc.subject.lcshHearing - Physiological aspects
dc.subject.lcshCochlea - Pathophysiology
dc.subject.lcshHearing disorders
dc.titleEffect of hearing loss and age on human cochlear traveling wave delay
dc.typemaster thesis
thesis.degree.disciplineNeuroscience
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
ucalgary.thesis.accessionTheses Collection 58.002:Box 996 520538306
ucalgary.thesis.notesoffsiteen
ucalgary.thesis.uarcreleaseyen
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