Sentence stress in ataxic dysarthria - A perceptual and acoustic study



Lowit, A and Kuschmann, A and Macleod, J M and Schaeffler, Felix and Mennen, Ineke (2010) Sentence stress in ataxic dysarthria - A perceptual and acoustic study. Journal of Medical Speech-Language Pathology, 18 (4). pp. 77-82. ISSN 10651438

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Abstract

This study examined how speakers with ataxic dysarthria produce sentence stress and how these findings relate to other measures of speech performance. Ten speakers with ataxia and ten control speakers performed maximum performance, sentence stress, and passage reading tasks. Perceptual analyses established intelligibility levels and accuracy of stress production. Acoustic analyses included F0, intensity, and duration measures for sentence stress targets and MPTs, as well as acoustic rhythm measures for the sentence and passage reading tasks. Results showed that 60% of speakers experienced problems in signalling sentence stress irrespective of the severity of their dysarthria. Intensity and duration were most impaired, with F0 and pause insertion being used as compensatory strategies. The results highlighted the need for a detailed examination of speaker abilities in a variety of tasks in order to inform selection of the most effective treatment strategies. Copyright © 2010 Delmar Cengage Learning.

Item Type: Article
Divisions: School of Health Sciences > Clinical Audiology, Speech and Language Research Centre
Date Deposited: 29 Mar 2011 11:32
Last Modified: 19 Mar 2014 12:58
URI: http://eresearch.qmu.ac.uk/id/eprint/2221

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