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KMID : 1036820210260020485
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Communication Sciences & Disorders
2021 Volume.26 No. 2 p.485 ~ p.500
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An Electropalatographic Study of Korean Fricatives /s/ and /s*/
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Kim Ji-Yeong
Woo Seong-Tak
Kim Mi-Jin
Oh Da-Hee
Kim Su-Jin
Ha Ji-Wan
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Abstract
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Objectives: The present study is aimed an electropalatographic investigation of Korean fricatives /s/ and /s*/. All data from this study is based on the production of 5- adult speakers who speak Korean as their first language.
Methods: Electropalatography (EPG) is an instrumental technique for showing tongue and palate contact during speech. The participants recorded /s/ and /s*/ in CV (/si/, /s?/, /su/, /s*i/, /s*?/, /s*u/) and VCV (/?si/, /?s?/, /?su/, /?s*i/, /?s*?/, /?s*u/) context using EPG and then, four variables were analyzed: row of medial groove (RMG), medial groove width (MGW), medial groove length (MGL), and maximum contact frame (MCF).
Results: There was significantly greater medial groove width and maximum contact frame for / s*/ compared to /s/. The difference between /si/ and /s?/ was also found in the row of medial groove, medial groove width and maximum contact frame. /si/ was produced further back, and had a longer medial groove length. Also, it showed more total tongue-palate contact than /sa/.
Conclusion: A various range of palatal contact patterns were found between typical adults for perceptually normal /s/ and /s*/. The results provided the information about tongue?palate pattern of Korean fricatives /s/ and /s*/. These findings would be utilized to build the basic data and useful information for Korean EPG system.
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KEYWORD
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Electropalatography, EPG, Korean fricatives, Biofeedback
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