• 대한음성학회지:말소리
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• 제64호
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• pp.1-14
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• 2007

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.

• Journal of Audiology & Otology
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• 제23권3호
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• pp.135-139
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• 2019

Background and Objectives: This study was undertaken to investigate the educational status in bilateral prelingual deaf children with a cochlear implant (CI), also known as early cochlear implantees (CIs). Type of schooling and enrollment rate of tertiary education were analyzed as primary results. Subjects and Methods: Participants in this study comprised a highly homogeneous group of deaf patients who underwent cochlear implantation at a similar age. Sixty-four Korean patients were enrolled. Statistical data for disabled populations and the general population were obtained from the National Statistics Korea. Results: Among 64 patients, 46, 8, and 10 attended mainstream, integrated, and special schools, respectively. Notably, there was a significant difference in the type of school between hearing-impaired and CI groups (p=0.007). Ten of 13 patients enrolled in tertiary education. Conclusions: CI users were more likely than hearing impaired students to attend mainstream school. The enrollment rate of CI users in tertiary education was the same as that of the general population.

• 대한청각학회지
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• 제23권3호
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• pp.135-139
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• 2019

Background and Objectives: This study was undertaken to investigate the educational status in bilateral prelingual deaf children with a cochlear implant (CI), also known as early cochlear implantees (CIs). Type of schooling and enrollment rate of tertiary education were analyzed as primary results. Subjects and Methods: Participants in this study comprised a highly homogeneous group of deaf patients who underwent cochlear implantation at a similar age. Sixty-four Korean patients were enrolled. Statistical data for disabled populations and the general population were obtained from the National Statistics Korea. Results: Among 64 patients, 46, 8, and 10 attended mainstream, integrated, and special schools, respectively. Notably, there was a significant difference in the type of school between hearing-impaired and CI groups (p=0.007). Ten of 13 patients enrolled in tertiary education. Conclusions: CI users were more likely than hearing impaired students to attend mainstream school. The enrollment rate of CI users in tertiary education was the same as that of the general population.

• 대한감각통합치료학회지
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• 제19권1호
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• pp.13-23
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• 2021

목적 : 본 연구는 전정감각 중심의 감각통합치료가 인공와우 수술 아동의 감각처리, 문제행동, 청각행동에 미치는 영향을 알아보고자 한다. 연구방법 : 본 연구는 대전시에 거주하는 인공와우 수술 후 보조기기를 착용한 아동3명을 대상자로 모집한 후에 2019년 8월부터 2019년 11월까지 총 11주간 전정감각 중심의 감각통합치료 프로그램을 실시하였다. 연구 설계는 단일 사례 실험 설계방법(single subject design)으로 A-B 설계를 사용하였으며, 기초선 기간 4회, 중재기 15회로 진행되었다. 기초선 기간에는 감각통합치료를 제공하지 않고, 중재기에는 40분간 치료사와 함께 자유놀이를 진행하였다. 중재기에는 대전시의 아동발달센터에서 1회기 당 40분으로 전정감각 중심의 감각통합치료를 제공하였다. 중재 시작 전과 중재기 15회 직후 참여 아동의 감각처리 능력과 청각행동을 평가했다. 문제 행동 관찰은 기초선 자유놀이 시간에, 중재기에는 치료가 실시되는 시간에 아동을 관찰하여 기록하였다. 결과 : 전정감각 중심의 감각통합치료를 중재하기 전보다 후에 A, B, C 세 명의 아동에게서 감각처리와 청각행동의 긍정적인 변화가 있었고, 문제행동에서도 2표준편차 밴드 그래프에서 긍정적인 변화를 확인할 수 있었다. 결론 : 본 연구의 결과는 전정감각 중심의 감각통합치료가 인공와우 수술 아동의 감각처리, 문제행동, 청각행동에 긍정적인 효과가 있음을 제시한다.

• 인간행동과 음악연구
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• 제21권1호
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• pp.29-47
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• 2024

본 연구는 인공와우이식(CI) 아동이 조성 및 템포 단서에 따라 구성된 음악에서 정서를 어떻게 지각하는지 알아보고 이를 건청(NH) 아동과 비교함으로써 CI 아동의 음악에서의 정서 지각에 대한 기초 자료를 마련하기 위해 실시되었다. 참여 대상자는 만 7세-13세 사이 CI 아동 13명과 NH 아동 36명으로 각 아동은 <장조+빠름>, <장조+느림>, <단조+빠름>, <단조+느림>의 4개 조건으로 구성된 음악을 듣고, 행복과 슬픔 중 해당 음악에서 느껴지는 정서를 선택하고 해당 정서가 어느 정도로 느껴지는지를 평정하는 과제에 참여하였다. 본 실험 전 규준 집단으로서 포함된 NH 아동이 NH 성인과 유사하게 정확한 정서 지각을 보이는지 확인하기 위한 사전 검증 절차를 진행하였으며, 두 그룹 간 유의한 차이가 없는 것으로 나타났다. 이후 CI 아동과 NH 아동의 정서 지각 수준을 비교 분석한 결과, 두 그룹 모두 <장조+빠름>의 음악을 행복의 정서로 가장 많이 지각하였으며, <단조+느림>의 음악을 가장 슬프게 지각하는 것으로 나타났다. 또한 CI 아동은 <단조+느림>을 제외한 모든 조건의 음악을 행복의 정서로 지각하는 반면, NH 아동은 장조로 구성된 음악은 행복의 정서를, 단조로 구성된 음악은 슬픔의 정서로 지각하는 것으로 나타났다. 본 연구 결과를 통해 CI 아동이 정서를 지각하는 데 있어 조성 단서보다는 템포 단서에 의존하는 경향이 있음을 확인하였으며, CI 아동의 음악에서의 정서 지각 과정을 보다 다각적으로 이해할 수 있도록 하는 기초 자료를 제시했다는 데 그 의의가 있다.

• Journal of Audiology & Otology
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• 제25권4호
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• pp.217-223
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• 2021

Background and Objectives: In cochlear implant (CI) surgery, the results and causes of revision and reimplantation may guide surgeons in establishing surgical protocols for revision surgery with safe audiological outcomes. The aim of this study was to review our experience in terms of etiology, surgical strategy, and hearing outcomes in pediatric patients who underwent CI removal and reimplantation. Subjects and Methods: All patients received implants of the same brand. Pre and postoperative Categories of Auditory Performance score and aided free-field pure tone audiometry thresholds were noted. In vivo integrity tests were performed for each patient and the results of ex vivo tests of each implant were obtained from manufacturer. Results: A total of 149 CIs were placed in 121 patients aged <18 years. The revision rate in children was 6.7% (10/121 children). Six patients had a history of head injury leading to a hard failure. The causes of reimplantation in others were soft failure (n=1), electrode migration (n=1), infection (n=1), and other (n=1). All patients showed better or similar postreimplantation audiological performance compared with pre-reimplantation results. Conclusions: It is very important to provide a safe school and home environment and educate the family for reducing reimplantation due to trauma. Especially for active children, psychiatric consultation should be continued postoperatively.

• 대한청각학회지
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• 제25권4호
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• pp.217-223
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• 2021

Background and Objectives: In cochlear implant (CI) surgery, the results and causes of revision and reimplantation may guide surgeons in establishing surgical protocols for revision surgery with safe audiological outcomes. The aim of this study was to review our experience in terms of etiology, surgical strategy, and hearing outcomes in pediatric patients who underwent CI removal and reimplantation. Subjects and Methods: All patients received implants of the same brand. Pre and postoperative Categories of Auditory Performance score and aided free-field pure tone audiometry thresholds were noted. In vivo integrity tests were performed for each patient and the results of ex vivo tests of each implant were obtained from manufacturer. Results: A total of 149 CIs were placed in 121 patients aged <18 years. The revision rate in children was 6.7% (10/121 children). Six patients had a history of head injury leading to a hard failure. The causes of reimplantation in others were soft failure (n=1), electrode migration (n=1), infection (n=1), and other (n=1). All patients showed better or similar postreimplantation audiological performance compared with pre-reimplantation results. Conclusions: It is very important to provide a safe school and home environment and educate the family for reducing reimplantation due to trauma. Especially for active children, psychiatric consultation should be continued postoperatively.

• 대한음성학회지:말소리
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• 제62호
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• pp.33-49
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• 2007

The purpose of this study is 1) to investigate the phoneme inventories and phonological processes of cochlear implant(CI) children and 2) to describe their utterances using narrow phonetic transcription method. All ten subjects had more than 2 year-experience with CI and showed more than 85 % open-set sentence perception abilities. Average consonant accuracy was 81.36 % and it was improved up to 87.41% when distortion errors were not counted. They showed similar phonological processing patterns to HA or normal hearing children in some way as well as different phonological processing patterns from HA or normal hearing children. The prominent distortion error pattern was weakening of consonants. Every subject had his/her idiosyncratic error pattern that demanded his/her own individualized therapy program.

• 말소리와 음성과학
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• 제12권1호
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• pp.75-83
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• 2020

본 연구는 인공와우아동을 대상으로 자가음성 모니터링(self-voice monitoring)을 응용한 가창 프로그램을 시행하여 억양의 개선과 음고 산출의 변화에 미치는 영향을 알아보기 위함이다. 연구대상자는 모집된 19명의 아동 중 참여기준을 충족하고 본인 및 보호자가 자발적인 참여 의사를 표현한 7명이 최종으로 선정되었다. 연구자는 CI 집단과 비교하기 위하여 같은 연령의 건청 아동 6명을 모집하였다. 자가음성 모니터링을 응용한 가창은 노래를 녹음하여 들어보고(listen), 음성의 음고 진행방향과 숨쉬기 구간 및 음질을 확인한(explore) 다음, 목소리를 수정하여 의도한 대로 재산출하는(reproduce) 세 단계로 구성되어 있다. 데이터는 문장과 노래로 나누어 측정하였다. 문장은 발화시간과 억양 기울기 및 산출 음고의 주파수 변화, 노래는 프레이즈(phrase) 구간 내 평균 음고의 주파수의 데이터를 수집하여 선율윤곽과 산출 주파수 범위를 측정한 후 건청집단과 비교하였다. 연구 결과 문장 분석에서 인공와우 아동 집단의 사후검사 시 의문문의 문미 2음절의 억양 기울기 및 패턴이 건청 아동과 같이 상행하는 윤곽으로 변화되었으며, 노래 데이터에서는 음고의 도약 및 산출 음고의 주파수 범위가 증가하였다. 이러한 결과는 인공와우 아동을 대상으로 한 자가음성 모니터링을 응용한 가창 프로그램이 억양의 개선과 음고 산출 정확도의 효과적인 중재방안이 될 수 있으며 이를 위한 지속적인 연구가 필요하다는 것을 시사한다.

• 말소리와 음성과학
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• 제4권4호
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• pp.117-127
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• 2012

This research reports the prosodic characteristics (including articulation speech rate, pause characteristics, duration) of children with cochlear implants with reference to those of children with normal hearing. Subjects are 8-to 10-year-old children, balancing each number of gender as 24. Dialogue speech data are comprised of four types of sentence patterns. Results show that 1) there's a statistically meaningful difference on articulation speech rate between the two groups. 2) On pauses, they are not observed in exclamatory and declarative sentences in normal children. While imperative sentences show no statistical difference on the number of pauses between the two groups, interrogative sentences do. 3) Declarative, exclamatory, and interrogative sentences reveal statistical difference between the two groups in terms of the sentence's final two-syllable word duration, showing no difference on imperative sentences. 4) When it comes to the RFP (duration ratio of sentence final syllable to penultimate syllable), we no statistically meaningful difference between the two groups in all types of sentences exists. 5) Lastly, RWS (the ratio of sentence final two syllable word duration to that of whole sentence duration) shows statistical difference between two groups in imperative sentences, but not in all the rest types.