應用聲譜分析評估吶吃療效之臨床報告

Using Spectrogram to Evaluate Dysarthric Treatment Effectiveness

李淑娥(Shu-Er Lee) ； 黃瑪莉(Ma-Li Huang) ； 徐道昌(Tao-Chang Hsu)

《中華民國復健醫學會雜誌》 18期 (1990/12) Pp. 177-185

摘要

吶吃(dysarthria)是神經系統病變三大語言障礙之一，患者會出現呼吸、發聲、構音、共嗚與韻律等多重複雜言語問題。語言治療師藉著靈敏的聽辨力雖能評估患者之言語特徵，但此種主觀的評估標準會因人而異，而且無法量化。本報告主要探討聲譜分析對吶吃言語評估之臨床應用價值，並以量化方式比較語言治療前後病患言語機轉之變化。
研究對象為六名吶吃患者，分析其言語樣本”ㄚ”，”ㄆㄚㄊㄚㄎㄚ”及”他們是好鄰居”。由11種聲譜音響特性來判讀病患之言語特徵，並與四名正常者相比較；結果發現聲譜分析確能反映吶吃病患之言語機轉，便療效之評估精確而具體，是臨床上應用價值極高之診斷評量工具。

並列摘要

Dysarthria may be defined as a group of speech disorders resulting from disturbance in muscular control due to damage in the central or peripheral nervous system. It encompasses coexisting neurogenic disorders of several or all the basic processes of speech - respiration, phonation, articulation, resonance and prosody. Although auditory discrimination can provide subjective evaluation of dysarthric speech before and after treatment, objective evaluation can help us to establish standards for clinical evaluation of acoustic charade- ristics.
Six dysarthric and four normal control subjects were evaluated in this study. Sound spectrographic analysis was done of speech samples in vowel prolongation /ah/, oral diadochokinetic movement /p ^ t ^ k ^ / and a 6-word sentence. The results show that differential diagnosis of dysarthria can be made from the spectrogram qualitatively, and the efficacy of treatment can be measured quantitatively. The sound spectrogram provides objectively more detailed and complete analysis of dysarthric speech. It is a significant tool for speech pathologist to use in clinical evaluation and research of dysarthric patients.

並列關鍵字

dysarthria ； acoustic characteristic ； sound spectrogram