인공와우 및 보청기 착용자의 단음절, 환경음 인지도와 오류패턴 비교

서지정보

ㆍ발행기관 : 한국청각언어재활학회 ㆍ수록지정보 : 청능재활 / 7권 / 1호
ㆍ저자명 : 이재희, 김지희

목차

"INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSIONS AND CONCLUSIONS
REFERENCES"

한국어 초록

인공와우(CI, Cochlear Implant)는 보청기(HA, Hearing Aid)로 재활이 어려운 양측 고심도 감각신경성 난청인들에게 청각정보를 제공해줄 수 있는 방법으로, 송화기에 유입된 음원을 전기에너지로 변환하여 와우 내에 삽입된 전극 통하여 전기자극을 주어 소리 정보를 제공한다. 2005년부터 실시된 한국 정부의 보험급여 확대로 와우 이식의 경제적 부담을 덜게 되어 보다 많은 고심도 난청인이 혜택을 받을 수 있게 되었다. 최근 CI 대상가능 후보가 점차 확대되어 다양한 연령, 다양한 원인에 의한 난청으로 적용 범위가 넓어졌다.

영어 초록

"This study aimed to compare the word and environmental sound recognition by cochlear implant (CI) and hearing aid (HA) users. Nine CI adult users and 8 HA adult users identified 200 monosyllabic words in the open-set condition and 80 environmental sounds in the closed-set format using pictures. All the target sounds were presented at 65 dB SPL. Five main findings were observed as follows. First, word and environmental sound recognition performance of both CI and HA groups was less than 50% accuracy, on average. Second, overall, recognition of environmental sounds was superior to that of monosyllabic words for both groups. Third, a large individual difference in recognition performance was found for both listener groups, regardless of the type of target sounds. Fourth, a strong and positive relation between word and environmental sound recognition performances, indicating that listeners who better recognized the closed-set environmental sounds were also superior to recognize the open-set monosyllabic words. Fifth, the analysis of listeners' errors for word recognition showed that the common error types were word substitution, no response, initial or final consonant substitution errors. The results of this study motivate further research on the development of closed-set recognition test or auditory training protocol using environmental sounds, especially for deaf population who have difficulty in open-set word recognition.
KEY WORDS : Comparison of cochlear implant versus hearing aid users, Monosyllabic word recognition, Environmental sound ecognition"

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