兄妹で類似した機能的構音障害(声門破裂音)のみられた症例 : 発達性発語失行の治療プログラムの有効性

概要

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We present two sibling cases who had a similar functional articulation disorder involving glottal stop sounds. The boy initially aged 5 years and 8 months and his younger sister aged 3 years and 8 months had average intelligence for their ages and normal velopharyngeal function without any anatomical anomaly of the lips, tongue, or palate. Specifically, they had no apparent weakness of velopharyngeal closure. The speech sounds of the boy requiring tongue tip movements were replaced by those produced by glottal stops. Articulation using the tongue was poor apparently due to the uncoordinated and untimely movements of the tongue. A therapeutic program using speech gesture was indicated to treat his problem. He was trained to move and place his tongue tip between his teeth repeatedly. After 5 months of treatment, the glottal stop sounds in his speech almost disappeared. Subsequently his sister was able to imitate his improved speech without difficulty. We conclude that this particular case of the boy's articulation disorder was developmental verbal dyspraxia, and also suspect that his sister's problem may have come from a certain genetic background. However, we can not deny a possibility that she merely imitated his glottal stop sounds.
社団法人日本リハビリテーション医学会の論文
2002-08-18