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Audiol > Volume 10(2); 2014 > Article
Audiology 2014;10(2): 87-98.
Published online: July 31, 2014.
doi: http://dx.doi.org/10.21848/audiol.2014.10.2.87
인공와우를 통한 말지각과 반대편 귀 사용 효과에 대한 최근 연구 고찰
오수희1, 김진숙2
1남부 플로리다 주립대학 의사소통과학 및 장애학부
2한림대학교 자연과학대학 언어청각학부
Speech Perception and Benefits from the Contralateral Device of Cochlear Implant Users: A Review of Recent Literature
Soo Hee Oh1, Jin-Sook Kim2
1Department of Communication Sciences and Disorders, University of South Florida, Tampa, Florida
2Division of Speech Pathology and Audiology, College of Natural Sciences, Hallym University, Chuncheon, Korea
Correspondence  Jin-Sook Kim ,Tel: (033) 248-2213, Fax: (033) 256-3420, Email: jskim@hallym.ac.kr
Received: June 19, 2014;  Accepted: July 18, 2014.  Published online: July 31, 2014.
ABSTRACT
The goal of cochlear implants restores functional hearing by transmitting electrical pulses to auditory nerves and improves speech perception. Although current cochlear implant users showed greatly improved sentence recognition scores in a quiet environment, the issues of understanding speech in a noisy environment and listening to music are still challenging for them. Limitations of spectral and temporal resolution are thought to be related to these difficulties of cochlear implant users. As one of the approaches to resolve these challenging issues, benefits from the contralateral device of cochlear implant users were introduced. Two different types of binaural placements, bilateral and bimodal hearing, were continuously increased and they demonstrated some amounts of speech perception benefits. Bilateral hearing improves sound localization and speech perception in noise mostly due to the benefits from head shadow and redundancy effects. On the other hand, bimodal benefits are delivered by using acoustic low frequency information which is not represented in electric stimulation via cochlear implants. A review of the literature related to these topics was addressed.
Key Words: Cochlear implants, Speech perception, Bilateral, Bimodal
중심단어: 인공와우, 말지각, 양측 인공와우, 바이모달
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