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음향학적 분석을 통한 노년층 연령에 따른 조음교대운동의 속도 및 규칙성

Authors
 조윤희 ; 김향희 
Citation
 말소리와 음성과학, Vol.5(3) : 95~101, 2013 
Journal Title
 말소리와 음성과학 
ISSN
 2005-8063 
Issue Date
2013
Abstract
Aging is related to anatomical and physiological changes in respiratory and phonation organs. These changes influence articulation which leads to inaccurate speech and slow articulatory diadochokinesis(DDK). DDK indicates the range, rate, regularity, accuracy, and agility of articulation that reflect motor speech function. The purpose of this study is to investigate the rates and regularities of DDK in healthy Korean elderly through passive acoustic analysis (Praat). Thirty subjects between the ages of 65 and 94 participated in this study. Rate was observed for 5 seconds, while regularity was calculated based on the standard deviation on the following: 1) syllable duration of each task; 2) gap duration between syllables. Then, simple regression analysis was conducted in order to examine the effect of age on performance. The result showed that the slow rate was not a significant factor in terms of advancing age. Furthermore, regularity indicated a significant difference in the following: 1) /pʌ/, /kʌ/ and /pʌtʌkʌ/ in syllable duration; 2) /kʌ/ duration in the gap between syllables. In conclusion, articulatory coordination is reduced with the onset of aging. In particular, /kʌ/ would be a sensitive task for articulatory coordination.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/87773
DOI
10.13064/KSSS.2013.5.3.095
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Rehabilitation Medicine
Yonsei Authors
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Link
 http://dx.doi.org/10.13064/KSSS.2013.5.3.095
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