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KMID : 1004320230340020050
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Journal of the Korean Society of Logopedics and Phoniatrics
2023 Volume.34 No. 2 p.50 ~ p.56
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A Study on Lip Movements Area and Vowel Space Area According to the Depressive Disorders
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Kang Young-Ae
Chang Jae-Won
Koo Bon-Seok
Lee Dong-Heon
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Abstract
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Background and Objectives This study aims to investigate the lip movements area (LMA) and vowel space area according to depression.
Materials and Method The participants diagnosed with voice disorders or thyroid cancer before treatment and surgery. All participants completed the depression questionnaire and recorded five vowels (/a, i, u, e, o/) phonation while shooting. Among the total 64 participants, there were 19 participants in the depressive disorders group and 45 participants in non-depressive group. The analysis parameters were LMA, vowel space areas (Area3 & Area5), formant centralization ratio (FCR), fundamental frequency (F0) and voice intensity (intensity). Multivariate analysis of variance (MANOVA) was applied, and age was treated as a covariate to correct for lip movement that could deteriorate as age increased.
Results As a result of MANOVA, there was no significant difference between groups (p=0.517). Looking at the LMA, both male and female in the depressive disorder group showed a lower mean value than the non-depressive disorders group. The Area3 and FCR of the depressive disorder group were higher than those in the non-depressive disorders group, whereas for the Area5, the mean value of female in the depressive disorder group was higher than that of the non-depressive disorder group and the male’s non-depressive disorder group had a slightly higher mean value.
Conclusion The voice intensity according to the presence or absence of depressive disorder was similar, but the depressive disorder group tended to show narrower oral area with smaller lip opening.
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KEYWORD
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Lip movements area, Vowel space area, FCR, F0, Intensity
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