Long-term phonatory instability in ataxic dysarthria

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dc.contributor.author Dimassi, Hani
dc.contributor.author Boutsen, Frank
dc.contributor.author Duffy, Joseph R.
dc.contributor.author Christman, Sarah S.
dc.date.accessioned 2015-10-01T12:23:01Z
dc.date.available 2015-10-01T12:23:01Z
dc.date.copyright 2011
dc.date.issued 2015-10-01
dc.identifier.issn 1021-776 en_US
dc.identifier.uri http://hdl.handle.net/10725/2232
dc.description.abstract Aims: Long-term phonatory instability can be quantified using cyclical and noncyclical measures. The objective of this study is to evaluate phonation in ataxic dysarthria and a control group of normal speakers to answer two main questions: (1) How common is elevated cyclical and noncyclical instability in ataxic dysarthria compared to that in a normal control group? (2) Is cyclical instability predictive of noncyclical instability? Methods: Vowel prolongations of ataxic-dysarthric and normal speakers were compared using the Motor Speech Profile module of the Computerized Speech Lab. Cyclical measures included tremor rate, amplitude and periodicity. Noncyclical measures included the coefficient of variation for loudness and frequency. Results: Noncyclical measures are elevated in a subset of speakers with ataxic dysarthria regardless of whether cyclical instability (vocal tremor) is present. Cyclical instability was detected in nearly half the patients. Interestingly, elevations in both types of measures also described phonation of a number of the participants in the control group. Conclusion: Combined use of cyclical and noncyclical measures can document aspects of phonation in ataxic dysarthria that have clinical implications. en_US
dc.language.iso en en_US
dc.title Long-term phonatory instability in ataxic dysarthria en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOP en_US
dc.author.idnumber 200603781
dc.author.woa N/A en_US
dc.author.department Pharmacy en_US
dc.description.embargo N/A en_US
dc.relation.journal Folia Phoniatrica et Logopaedica, en_US
dc.journal.volume 63 en_US
dc.journal.issue 4 en_US
dc.article.pages 216-220 en_US
dc.identifier.doi http://dx.doi.org/10.1159/000319971 en_US
dc.identifier.ctation Boutsen, F., Duffy, J. R., Dimassi, H., & Christman, S. S. (2011). Long-term phonatory instability in ataxic dysarthria. Folia Phoniatrica et Logopaedica, 63(4), 216-220. en_US
dc.author.email hani.dimassi@lau.edu.lb
dc.identifier.url http://www.karger.com/Article/Abstract/319971

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