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Audiol > Volume 7(1); 2011 > Article
Audiology 2011;7(1): 28-39.
Published online: June 30, 2011.
doi: http://doi.org/10.21848/audiol.2011.7.1.28
인공와우 및 보청기 착용자의 단음절, 환경음 인지도와 오류패턴 비교
이재희1, 김지희2,3
1한림국제대학원대학교 청각학과
2한림국제대학원대학교 청각학 전공
3관동대학교 명지병원 이비인후과
Comparison of word and environmental sound recognition by cochlear implant and hearing aid users
Jae Hee Lee1, Ji Hee Kim2,3
1Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea
2Graduate Program in Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea
3Department of Otolaryngology, Kwandong University College of Medicine Myongji Hospital. Gyeonggi-do. Korea
Correspondence  Jae Hee Lee ,Tel: (02) 2051-2942, Fax: (02) 3453-6618, Email: leejaehee@hallym.ac.kr
Received: April 28, 2011; Revised: June 3, 2011   Accepted: June 7, 2011.  Published online: June 30, 2011.
ABSTRACT
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 recognition
중심단어: 단음절 인지도, 인공와우 착용군과 보청기 착용군 비교, 환경음 인지도.
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