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dc.creatorPagel, Dolle Deann
dc.date.available2011-02-18T20:34:39Z
dc.date.issued1992-12
dc.identifier.urihttp://hdl.handle.net/2346/14200en_US
dc.description.abstractThe literature contains limited information concerning the voice characteristics of Multiple Sclerosis (M.S.) patients. Vocal fold perturbation values have been found to be an effective means in determining normal vocal fold status, yet no research has been reported for the M.S. population. Fifteen M.S. subjects were matched with fifteen normal subjects by age and gender. All subjects prolonged la.l and /i:/, and repeated the utterances. /hi:d/. /hfl:d/. /pi:d/ and /pa:6/, prolonging the medial sound. The data were tape recorded digitally, analyzed and compared in terms of differences in fundamental frequency, jitter, and shimmer rates. Results did not show significant differences between the normal and M.S. groups for fundamental frequency and jitter. One significant finding (.015 level of confidence) was discovered for shimmer in the speech utterance /hi:d/. All other speech utterances did not yield significant. The results were similar to previous studies conducted when comparing fundamental frequency; however, perturbation results appeared variable and inconsistent with previous studies.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherTexas Tech Universityen_US
dc.subjectMultiple sclerosis -- Pathophysiologyen_US
dc.subjectSpeech disordersen_US
dc.titleVocal Fold Perturbation Rates: Comparison Between Multiple Sclerosis and Normal Subjects
dc.typeThesis
thesis.degree.nameM.S.
thesis.degree.levelMasters
thesis.degree.grantorTexas Tech University
thesis.degree.departmentSpeech and Hearing Sciences
dc.rights.availabilityUnrestricted.


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