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KMID : 0917520000070020019
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Journal of Speech Sciences
2000 Volume.7 No. 2 p.19 ~ p.35
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Use of Acoustic Analysis for Indivisualised Therapeutic Planning and Assessment of Treatment Effect in the Dysarthric Children
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Abstract
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Speech evaluation and treatment planning for the patients with articulation disorders have traditionally been based on perceptual judgement by speech pathologists. Recently, various compuerized speech analysis systems have been developed and commonly used in clinical settings to obtain the objective and quantitative data and specific tradtment strategies. 10 dysarthric children (6 neurogenic and 4 functional dysarthria) participated in this experiment. Speech evaluation of dysarthria was performed in two ways; first, the acoustic analysis by Visi-Pitch and a Computerized Speech Lab and second, the perceptual scoring of phonetic errors rates in 100 word test. The results of the initial evaluation seved as primary guidlines for the indivisualized treatment planning of each patient´s speech problems. After mean treatment period of 5 months, the follow-up data of both dysarthric groups showed increased maximum phonation time, increased alternative motion rate and decreased occurrence of articulatory deviation. The changes of acoustic data and therapeutic effects were more prominent in children with dysarthria due to neurologic causes than with functional dysarthria. Three cases including their pre- and post treatment data were illustrated in detail.
Keywords : Dysarthria, Acoustic analysis, Quantitative assessment, Maximum phonaion time, alternative motion rate
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