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KMID : 1022420220140020067
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Phonetics and Speech Sciences
2022 Volume.14 No. 2 p.67 ~ p.76
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Korean listeners’ mode of perceiving the durational variations of /s/ as prolongations
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Park Jin
Go Bok-Sun
Park So-Hyun
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Abstract
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This study aimed to examine Korean listeners’ mode of perceiving sound duration as prolongation, whether dichotomous or continuous. Thirty-five Korean participants (17 men and 18 women) listened to the Korean segment /s/, which was lengthened by 0? 980ms in 20-ms increments. Then, the participants were asked to rate each version of the sound based on a rating of one to 100 (the closer to 100, the more disfluent). To examine whether listeners perceived durational variations for the fricative segment dichotomously or continuously, a curve was estimated using the best-fitting regression model for the observed data with the highest adjusted R-squared value. The mode of perceiving durational variations for the segment was continuous (or gradient) rather than discontinuous (or dichotomous). No gender difference was found in the mode of perceiving prolongation. However, there was a significant gender difference in that men rated the most disfluent sounds higher than women. The findings of this study were further discussed in relation to the existing literature, and clinical implications for the assessment of stuttering were presented.
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KEYWORD
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sound prolongation, stuttering, Korean fricative /s/, continuous perception
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