The Effects of Vowel Type on the Nasalance score in Normal Condition and in Simulated VPI Condition

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J Korean Soc Laryngol Phoniatr Logop > Volume 13(1); 2002 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2002;13(1): 45-51.

정상시와 인위적 연인두 폐쇄 부전시 모음에 따른 비음치 연구

최홍식¹, 이성은², 황민아³, 김세헌¹

¹연세대학교 의과대학 이비인후과학교실, 음성언어의학연구소²연세대학교 언어병리학³단국대학교 특수교육학과

The Effects of Vowel Type on the Nasalance score in Normal Condition and in Simulated VPI Condition

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ABSTRACT

The purpose of this study is to examine the effects of vowel type on the nasalance score. Twenty one male adults without VPI produced 5 types of vowels (/a/, /e/, /i/, /o/, /u/) in two conditions-normal and simulated VPI condition. Nasalance scores were measured for each vowel. These data were compared between conditions and among vowel types. The results were as follow : For all vowels, nasalance scores were significantly higher in simulated VPI condition than in normal condition. The two conditions yielded different patterns in terms of the degree of nasalance across the 5 vowels. In normal condition, nasalance scores were higher in front vowels than in medial or back vowels. But in simulated VPI condition, nasalance scores were higher in high vowels than in mid or low vowels.

KEY WORDS： Velopharyngeal incompetence (VPI);Nasalance score;

중심 단어： 연인두 폐쇄 부전;비음치;