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KMID : 0917520010080030185
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Journal of Speech Sciences
2001 Volume.8 No. 3 p.185 ~ p.200
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Effects of Vocal Relaxation Treatment on the Articulation Accuracy and Compensatory Articulation of Cleft Palate Children
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Abstract
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This study was designed to investigate the treatment, generalization, and mainte-nance effects of vocal relaxation treatment on compensatory articulation(i.e., glottal-ization of plosive sound) of three children with cleft palate. Multiple baseline design was applied to evaluate treatment, generalization, and maintenance effects. The targeted phonemes were /ph/, /th/, /t/ which were frequently substituted by glottal stop sounds. The main component of the treatment program was vocal relaxation using humming and aspiration sound /h/. The following conclusions were deduced from the results: (1) the treatment program for compensatory articulation was effective in facilitating correct ro-duction of targeted phoneme and eliminating glottalization for all subjects, (2) the treat-ment effects on articulation accuracy were generalized to untreated phonemes (/c/, /c^h/) for 2 subjects, (3) the treatment effects on decrease of glottalization were generalized to untreated phonemes for all subjects, and (4) the treatment effects were maintained for all subjects for 2 weeks after treatment was terminated.
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