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KMID : 0917519970020010067
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Journal of Speech Sciences
1997 Volume.2 No. 1 p.67 ~ p.88
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An Experimental Clinical Phonetic Study on Patients of Dysarthria, Tonsilhypertrophy Nasal Obstruction, and Cleft Palate
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Kim Hyun-Gi
Ko Do-Heung
Shin Hyo-Keun
Hong Ki-Hwan
Seo Jeong-Hwan
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Abstract
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The aim of this study is to develop an assessment program of speech rehabilitation for children having some language and speech disorders. Patients of dysarthria, tonsillectomy, tonsilhypertrophy, and nasal obstruction were selected for this experimental clinical phonetic study. Formant variations (F_1 & F_2) show pre- and post-operation differences in tonsillectomy and cleft palate patients.
Nasal formants (NF_1 & NF_2) show pre- and post-operation differences in nasal obstruction. The articulation reaction tiem (ART) as a parameter was used to assess Voice Onset Time(VOT). It was shown longer duration for hypokinetic dysarthria and shorter for atoxic dysarthria. The diadochokinetic rate was measured by Visi-pitch. Lower diadochokinetic rate appeared to spastic and dysarthria in comparison with the control group.
It was shown that the nasalance of tonsilhypertrophy, nasal obstruction, and cleft palate patients only by simple vowels such as /a/ and /i/.
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KEYWORD
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speech disorders, dysarthria, tonsilhypertrophy, cleft palate
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