모음의 포먼트 변형에 따른 인공와우 이식 아동의 청각적 인지변화

허명진,Huh, Myung-Jin 대한음성학회 2007 말소리 Vol.64 No.-

The purpose of this study was to examine the acoustic perception different by formants change for profoundly hearing impaired children with cochlear implants. The subjects were 10 children after 15 months of experience with the implant and mean of their chronological age was 8.4 years and Standard deviation was 2.9 years. The ability of auditory perception was assessed using acoustic-synthetic vowels. The acoustic-synthetic vowel was combined with F1, F2, and F3 into a vowel and produced 42 synthetic sound, using Speech GUI(Graphic User Interface) program. The data was deal with clustering analysis and on-line analytical processing for perception ability of acoustic synthetic vowel. The results showed that auditory perception scores of acoustic-synthetic vowels for cochlear implanted children were increased in F2 synthetic vowels compaire to those of F1. And it was found that they perceived the differences of vowels in terms of distance rates between F1 and F2 in specific vowel.

교육환경이 다른 학령기 고도난청아동의 음소 산출능력과 그 음운패턴의 변화

허명진,이상흔,정옥란,Huh, Myung-Jin,Lee, Sang-Heun,Jeong, Ok-Ran 한국음성학회 2001 음성과학 Vol.8 No.4

This study was designed to evaluate the phonological characteristics in profound hearing-impaired children. 10 males and 10 females participated in this study and all were prelingually hearing impaired. 7 children were educated at deaf school and 13 children at general elementary school with private clinic. Their hearing levels were more than 95dB HL and did not appear any wave by ABR. The results can be summarized as following: The articulation accuracy of hearing impaired children was 54.19% and most distinguished phonological patterns of the hearing impaired children were alveolarization and stop assimilation. The accurate articulation phonation was significantly different from education system between deaf school and general school. The error articulation degrees in profound hearing impaired children at general school seemed meaningfully smaller than those in hearing impaired children at deaf school.

청각장애 아동의 인공와우 착용기관에 따른 모음 /i/ 음형대의 변화 연구

허명진,이상흔,최성규,Huh, Myung-Jin,Lee, Sang-Heun,Choi, Sung-Kyu 한국음성학회 2005 음성과학 Vol.12 No.2

This study was analyzed to change of /i/ formant follow cochlear implantation periods for hearing impaired children with cochlear implantation. 20 hearing impaired children participated and acoustic analysis of /i/ was used CSL(Computerized Speech Lab; Model 4300b) annually. The data was captured the first formant, $2^{nd}$ & 3th formant frequency of /i/ and was analyzed using ANOVA. Multiple range test to investigate difference between group was treat with LSD and Duncan. The results of /i/ formant analysis for hearing impaired children with cochlear implantation, each formant at a year keeping with cochlear implantation was located at high frequency. In accordance with CI periods, the each formant decreased significantly, especially between a year and $2^{nd}$ year taking with cochlear implantation.

최고도이상의 청력손실을 가진 아동의 모음음형대 분석

허명진,Huh, Myung-Jin 한국음성학회 2007 음성과학 Vol.14 No.2

The severe-profound hearing impaired children have various disorders in everday communication due to the lack of hearing feedback. Especially, their speech produced unstable voice, omission and distortion of articulation, pitch break, cul-de-sac voice, and so on so that they were difficult to accurately deliver an intended message. This study attempts to analyze the acoustic characteristics of 4 vowel sounds produced by 35 severe-profound hearing impaired children using CSL(Computerized Speech Lab, Model 4300b). The formant data were obtained from the spectrogram and analyzed data by 12 formant filter and auto-correlation among the formants. Results showed that the hearing impaired children's formant values came out very high. They produced the vowels at the mode of hypertension with unstable voice. In order to improve their speech, they would need some adequate auditory feedback.

언어습득전 난청자의 음향학적 특성

허명진(Myung-Jin Huh),정옥란(Ok-Ran Jeong) 한국언어치료학회 1997 言語治療硏究 Vol.6 No.-

외국인 유학생이 산출한 한국어 파열음의 VOT 특성

허명진(Myung Jin Huh) 한국언어치료학회 2021 한국언어치료학회 학술발표대회 논문집 Vol.2021 No.11

외국인 유학생의 한국어 파열음 발음패턴분석

허명진(Huh Myung Jin),강소영(Kang So Young) 한국청각·언어장애교육학회 2019 한국청각·언어장애교육연구 Vol.10 No.1

한국어 파열음은 다른 외국어와 달리 기류방법에 따라 평음, 경음, 기식음으로 나뉜다. 이에 본 연구는 한국에 유학 온 외국인 유학생을 대상으로 한국어 파열음의 조음방법에 따른 발음패턴을 분석하고자 하였다. 연구에 참여한 대상자는 부산에 소재한 한국어학원에 유학 온 20-30대의 성인으로 인지적, 정서적, 감각에 문제가 없는 11명의 외국인들이었다. 한국어 파열음의 정확도를 측정하기 위해 U-TAP검사의 일부 단어와 파열음의 조음방법에 따른 음향학적 특성을 분석하기 위해 Praat 음향분석프로그램으로 VOT를 분석하였다. 검사시 대상자별 산출한 파열음 샘플은 wav파일로 녹음하였다. 외국인 유학생의 파열음 조음방법에 따른 발음정확도와 VOT 차이를 살펴보기 위해 대응표본 t검증을 실시하였다. 연구결과, 외국인 유학생은 기식음의 오류율이 가장 낮았으며, VOT는 기식음이 가장 길고, 평음과 경음 순으로 나타났다. 그러나, 경음 평균시간에 표준편차를 살펴보면 평음과 유사하므로 외국인 유학생들이 경음을 평음과 혼돈하여 산출하는 것을 알 수 있다. The Korean plosive sound is divided into lax sound, tension sound, and aspiration sound according to the air flow method unlike other foreign languages. The purpose of this study was to analyze the pronunciation patterns according to the articulation manner of the plosive Korean of foreign students who come to study in Korea. The subjects of the study were 11 foreigners were 20-30 adults who came to Korean language institute located in Busan and who had no cognitive, emotional and sensory problems. Some words of U-TAP test were used to measure the accuracy of Korean plosive sounds. In order to analyze the acoustic characteristics according to the articulation method of plosive sound, VOT was analyzed with Praat. This samples were recorded as wav files. To verify the pronunciation accuracy and the VOT difference according to the plosive sounding method of the foreign student, a corresponding sample t test was conducted. As a result of the study, the error rate for foreign students was the lowest at aspiration sound among plosive sounds, VOT was the longest aspiration sound, followed by lax sound and tension sound. However, when the standard deviation of plosive sounds is considered, tension sounds may be similar to lax sound. It can be seen that the foreign students are confused with lax sound and tension sound.

인공와우를 착용한 청각장애아동의 의사소통 활용에 따른 사회역량변화: 부모설문을 기초로

허명진 ( Myung Jin Huh ) 한국특수아동학회 2014 특수아동교육연구 Vol.16 No.1

인공와우를 착용한 청각장애아동의 선행연구 결과는 대부분 말소리 지각에 관한 연구들이었다. 그러나 인공와우를 착용한 아동의 수가 증가함에 따라 그들의 사회적 역량이 변화될 것이다. 이에 본 연구에서는 인공와우를 착용한 청각장애아동의 의사소통 활용과 사회적 역량을 변화를 살펴보고자 하였다. 연구대상은 인공와우를 착용한 청각장애 28명의 부모를 대상으로 설문조사하였다. 이 조사를 위해 O``Neill et al.(2004)의 설문지를 번안하여 국내실정에 맞도록 수정보완하였으며 아동의 부모와 개별 면접 방식으로 설문문항을 검사하였다. 연구결과, 첫째 인공와우를 착용한 청각장애아동은 인공와우를 조기에 착용할수록 의사소통 활용이 향상되었다. 둘째, 인공와우를 착용한 청각장애아동의 사회적 역량이 향상되었다. 셋째, 의사소통의 능력과 사회적 역량은 유의한 정적상관이 나타났다. 따라서 인공와우를 착용한 청각장애아동은 조기에 인공와우를 착용하면 의사소통 기능이 향상시켜 사회적 역량을 증진시키는 것을 알 수 있었다. 본 연구는 인공와우를 착용한 청각장애아동의 사회적 역량을 제시해 주어 청각장애 교육적 측면에서 매우 의의가 있는 것으로 사료된다. There were many studies on speech recognition development through preview studies about cochlear implanted children recently. Cochlear implanted children might be improved not only speech recognition ability but also social competence. The purpose of this study was to investigate social competence development and communication ability on children with cochlear implantation. The subjects participated of 28 parents of cochlear implanted children and their mean chronological age was 9y 11m, and SD was 2y 9m. To find their communication ability and social competence, this study used questionnaire made by O`Nell et al.(2004) and interviewed their parents face to face. These results showed that first, the more cochlear implanted children were young the more their communication ability improved. Second, hearing impaired children increased their social competence after cochlear implantation. Third, relationship between their communication ability and social competence appeared significantly strong relation.

ASC를 통한 인공와우이식 아동의 청각인지 발달평가의 타당성과 신뢰성

허명진(Myung Jin Huh) 한국언어치료학회 2010 言語治療硏究 Vol.19 No.4

This study analyzed auditory perception development for hearing impaired children with cochlear implants. Recently, evaluations on auditory perception in Korea were to measure auditory performance levels, such as IT-MAIS and CAP. These auditory skills checklists could uncover auditory perception levels on auditory rehabilitation. The validity for these checklists was compared to IT-MAIS data and reliability was assessed by Cronbach's alpha. The present study was conducted on 11 subjects who had cochlear implants. The subjects had a mean age of 25 months (SD: 10.5 months). Data analysis was conducted using a one-way ANOVA. The results showed that ASC had excellent internal consistency (Cronbach's alpha: 0.98) and was correlated with the IT-MAIS(r=0.73). Auditory perception skills for children with cochlear implants were improved from no response or detection level to discrimination or identification level at 3 months and 6 months after cochlear implantation. At 12 months after cochlear implantation, they showed slight development on comprehension level. Therefore, this ASC was a clinically relevant and easily administered tool for assessing the auditory perception development of hearing impaired children with additional devices.

선천성 청각장애아동의 청지각 발달에 미칠 수 있는 요인 고찰

허명진 ( Myung Jin Huh ),최성규 ( Sung Kyu Choi ),이상흔 ( Sang Heun Lee ) 한국특수아동학회 2006 특수아동교육연구 Vol.8 No.4

선천성 청각장애아동은 태어나면서부터 청력손실로 일부 소리에 대해 청각적 피드백을 받지 못한다. 즉, 언어적인 자극에 대한 청지각의 기능이 떨어져 시지각적인 인지능력에 의존하여 의사소통하게 된다. 그러나 20세기에 들어오면서 인공와우의 개발로 인하여 선천성 청각장애아동에게도 충분한 청각적 자극을 보상받을 수 있게 되었고 청각장애아아동의 청지각적 영역에도 변화가 나타나게 되었다. 따라서 본 연구에서 선천성 청각장애아동이 인공와우를 이식받게 되면서 아동의 청지각 발달에 영향을 미칠 수 있는 변인들 고찰해 보고자 하였다. 세부적으로 인공와우 장치가 갖고 있는 변인뿐 아니라 아동이 갖고 있는 개별적인 변인을 고려해서 고찰해 보았으며, 이러한 고찰은 선천성 청각장애아동의 뇌의 활성화와 연결시켜 탐색해 보았다. 그러므로 본 연구는 선천성 청각장애아동의 청지각 발달에 영향을 미칠 수 있는 다양한 요인을 제시해 두었고 이를 근거로 교육적 접근이 용이해 질수 있을 것으로 사료된다. The congenitally hearing impaired children have problem of auditory perception at environment, due to auditory defect. This auditory defect of very young children was bringing about language delay, voice and resonance disorder and articulation disorder. Cochlear implants are able to restore some degree of hearing to deafened individuals; however implant users are particularly susceptible to background noise. To improve of auditory perception ability for congenitally hearing impaired children, this study was inquired into affected factors of cochlear implant devise and individual cause. These include; 1) development of auditory perception ability for hearing children, 2) change of auditory perception ability for congenitally hearing impaired children through previous study. Research is continuing to improve the design of the sound processors used with cochlear implants. This is expected to continue to categorical perception about auditory for congenitally hearing impaired with cochlear implant.