Picture of virus under microscope

Research under the microscope...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

Explore SIPBS research

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.

Full text not available in this repository. (Request a copy from the Strathclyde author)

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.