Speech Characteristics of Patients with Cleft Palates Based on Objective Measurements

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J Korean Soc Laryngol Phoniatr Logop > Volume 13(2); 2002 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2002;13(2): 124-131.

구개열 환자 언어의 음성언어의학적 특징 연구

박혜숙¹, 최홍식², 김현기³

¹연세의료원 재활병원 언어치료실, 연세대학교 의과대학 이비인후과교실²연세대학교 의과대학 음성언어의학연구소³전북대학교 임상언어병리학과, 음성과학연구소

Speech Characteristics of Patients with Cleft Palates Based on Objective Measurements

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ABSTRACT

Speech characteristics of patients with cleft palates are resonance disorders, articulatory disorders and voice disorders. The purpose of this study is to find the acoustic, physiological and articulatory characteristics of cleft palate speakers. Thirteen control groups and 3 cleft palate patients participated in this experiment. Test words were composed of simple vowels and consonants imbedded in low vowel /a/, /p 'ap'i/ and /sasi/ according to the evaluation experiments. CSL, Video fluoroscopy, Fiberscope and Nasometer were used to analyze VOT, vowel formants, profiles of articulator, VP port images and nasalance. The results are as follows : (1) The nasalance of cleft palate patients in the high vowel /i/, stop sounds and fricative sounds were 60%, 34.8% and 44.1%, respectively. These values were higher than those of the control group. (2) Posterior articulatory movements /k'a/ in patients with cleft palates showed backward movement in comparison with the control group on Video Fluoroscopic images and palatograms. These results suggested that patients with cleft palate have the compensatory oral sounds to close the VP port. (3) The VOT in patients with cleft palates was longer than that of the control group.

KEY WORDS： VOT;Nasalance;Palatogram;Misarticulation;