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Comparing variability in speech motor control in dysarthria with perceptual and acoustic assessments

van Brenk, Frits and Lowit, Anja (2012) Comparing variability in speech motor control in dysarthria with perceptual and acoustic assessments. In: Motor Speech Conference, 2012-02-29 - 2012-03-04, Santa Rosa, CA.

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Abstract

This study examined the relationship of speech variability indices extracted from audio recordings with a range of perceptual and acoustic measures of dysarthric speech. Twenty speakers with hypokinetic dysarthria due to Parkinson’s Disease and ten speakers with ataxic dysarthria due to different underlying neuropathologies engaged in a series of speech and non-speech tasks. Functional Data Analysis was applied to obtain spatial and temporal variability of loudness, fundamental frequency and formant contours extracted from sentence repetitions. Syllable length and maximum vowel intensity were measured in diadochokinetic tasks. Perceptual measures of intelligibility in sentence and passage reading as well as spontaneous speech were obtained by means of a scaling experiment and orthographic transcription. Linear regression models were applied to explore the relationship between spatial and temporal variability and the acoustic and perceptual assessments. The results will be compared separately for the different dysarthria types and discussed with respect to their respective underlying etiologies.

Item type: Conference or Workshop Item (Poster)
ID code: 37867
Keywords: speech and language disorders, motor speech disorders, Public health. Hygiene. Preventive Medicine, Child Health. Child health services
Subjects: Medicine > Public aspects of medicine > Public health. Hygiene. Preventive Medicine
Medicine > Pediatrics > Child Health. Child health services
Department: Faculty of Humanities and Social Sciences (HaSS) > School of Psychological Science and Health > Speech and Language Therapy
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 24 Feb 2012 14:28
Last modified: 04 Oct 2012 17:55
URI: http://strathprints.strath.ac.uk/id/eprint/37867

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