• 말소리와 음성과학
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• 제10권4호
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• pp.163-171
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• 2018

A mixed dysarthria with combinations of hypokinetic, ataxic, and spastic components is a common clinical feature of multiple system atrophy (MSA). Due to the rapid progress of dysarthria after diagnosis, people with MSA experience difficulty with verbal communication, which eventually affects their quality of life negatively. In this study, SPEAK $OUT!^{(R)}$, an intensive 1:1 treatment of dysarthria for improving functional communicative ability, was provided to twelve people with MSA. To evaluate the efficacy of SPEAK $OUT!^{(R)}$ in people with MSA, aerodynamic, acoustic, and perceptual analyses were conducted. Pre-and post-therapy data included maximum phonation time, vocal intensity, and fundamental frequency during /a/ sustained phonation and passage reading; frequency range between high /a/ and low /a/ phonation; jitter, shimmer, and HNR for vocal quality; speech rate during passage reading; and perceptual evaluation scores for articulation precision and intonation. The participants achieved statistically significant improvement in vocal intensity, pitch range, vocal quality, speech rate, and speech intelligibility. In conclusion, SPEAK $OUT!^{(R)}$ is a feasible treatment for people with MSA to efficaciously improve their speech ability.

• 대한한방내과학회지
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• 제25권4호
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• pp.457-463
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• 2004

Schizencephaly is a form of the porencephaly in which there is a cystic cavity in the cerebral hemispheres. Schizencephaly is a congenital disease which consist of clefts that extend through the entire hemisphere from the ependymal lining of the lateral ventricles to the pial covering of the cortex. The etiology and the pathogenesis of this malady are not clearly estalilished. Typical symtoms is seizures, mental retardation, spastic tetraplegia and blindness. A case of schizencephaly which was treated through methods of the Oriental Medicine, and that met with good results, is reported.

• 말소리와 음성과학
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• 제3권1호
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• pp.135-143
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• 2011

This study evaluated the respiratory capacity of spastic cerebral palsy children who were grouped by GMFCS (Gross Motor Function Classification System) levels and identified the acoustic characteristics of three different types of Korean stops (stop consonants) which are needed for the temporal coordination of larynx and supra-larynx, in these children. Thirty-two children with dysarthria due to spastic cerebral palsy were divided into two subgroups: 14 children classified at GMFCS levels I~III were placed in Group 1 and 18 classified at GMFCS levels IV~V were placed in Group 11, and 18 children with normal speech were selected and placed in the control group. /a/ pronged phonation (sustained vowel /a/) and nine Korean VCV syllables were used. Examined acoustic characteristics were maximum phonation time (MPT) and closure duration and aspiration duration. The results were as follows: 1) The MPTs of the cerebral palsy (CP) groups, both Group I and Group II, were significantly shorter than those of the normal group. 2) The closure durations of the two CP groups were longer than those of the normal group for all 9 target syllables. 3) The aspiration durations of the two CP groups were longer than those of the normal group. 4) The closure duration of the normal and CP Group I was significantly different among tense, aspirated, and lax. However, the CP Group II was different from normal. 5) The aspiration duration of the normal and CP Group I was significantly different among aspirated, tense, and lax. However, the CP Group II was different from normal. 6) The place of articulation influenced less than the manner of articulation on closure and aspiration duration.

• The Journal of the Acoustical Society of Korea
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• 제24권1E호
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• pp.28-33
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• 2005

This study was designed to suggest an assessment tool for analyzing the characteristics of Korean phonetic contrast intelligibility among dysarthric individuals. The intelligibility deficit factors of phonetic contrast in Korean dysarthric patients were analyzed through stepwise regression analysis. The 19 acoustic-phonetic contrasts proposed by Kent et al. (1999) have been claimed to be useful for clinical assessment and research on dysarthria. However, the test cannot be directly applied to Korean patients due to linguistic differences between English and Korean. Thus, it is necessary to devise a Korean word intelligibility test that reflects the distinct characteristics of the Korean language. To identify the speech error characteristics of a Korean dysarthric group, a Korean word list was audio-recorded by 3 spastic, 4 flaccid, and 5 mixed type of dysarthric patients. The word list consisted of monosyllabic consonant-vowel-consonant (CVC) real word pairs. Stimulus words included 41 phonemic contrast pairs and six triplets. The results showed that the percentage of errors in final position contrast was higher than in any other position. Unlike the results of previous studies, the initial-position contrasts were crucial in predicting the overall intelligibility among Korean patients.

• 말소리와 음성과학
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• 제13권2호
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• pp.45-55
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• 2021

본 연구는 경직형 경도-중등도 뇌성마비 마비말장애 성인이 산출한 한국어 파찰음의 음향학적인 특징을 분석한다. 한국어의 마찰음과 파찰음은 조음오류가 빈번하게 발생하는 자음인데, 기존 연구들은 마찰음에만 집중했다. 따라서 본 연구에서는 마비말장애 화자가 산출한 파찰음을 음향학적으로 분석하고자 한다. QoLT_SPEECH_2014 데이터베이스 내에서 파찰음 /tɕ, tɕ^h, ͈tɕ/이 어두 초성 및 어중 초성에 위치하는 단어를 선정하여 경도-중등도 경직형 장애 남성 화자 6명과 비장애 남성 화자 5명의 발화 데이터를 분석에 사용하였다. 한국어의 파찰음의 특성을 고려하여 파찰음의 음향학적 특징을 나타내는 매개변수를 선정하여 분석을 시행하였다: 마찰구간의 길이, 묵음 구간의 길이, 무게중심, 분산, 왜도, 첨도, 중심적률. 분석 결과는 다음과 같다: 1) 어중 초성 파찰음에서 마비말장애인이 유의하게 긴 마찰구간의 길이를 보였다, 2) 마비말장애인이 유의하게 긴 묵음 구간의 길이를 보였다, 3) 무게중심의 경우 두 집단 간의 유의한 차이가 존재하지 않았다, 4) 마비말장애인이 유의하게 큰 왜도 값을 보였다, 5) 마비말장애인이 유의하게 큰 중심적률 값을 보였다. 본 연구는 마비말장애인이 산출한 파찰음의 특성을 분석하고, 비장애인이 산출한 파찰음과의 차이를 밝혔다.