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노인성 난청의 청력손실 정도에 따른 어음인지능력
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  • 노인성 난청의 청력손실 정도에 따른 어음인지능력
  • Effects of Frequency Range and Degree of Hearing Loss on Word Recognition in Elderly Listeners
저자명
주연미,장현숙
간행물명
Audiology and Speech ResearchKCI,SCOPUS
권/호정보
2009년|5권 1호(통권8호)|pp.36-41 (6 pages)
발행정보
한국청각언어재활학회|한국
파일정보
정기간행물|KOR|
PDF텍스트(0.28MB)
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서지반출

국문초록

노인성 난청(presbycusis)은 연령증가에 따른 가장 흔한 감각신경성 기능저하의 한 질환으로서 우리나라가 점점 고령화 사회에 진입하면서 노인성 난청 인구가 차지하는 비중이 높아지고 있는 추세이다. 65세 이상의 노인을 대상으로 노인성 난청의 청력손실의 특징에 대한 연구들에 따르면, 연 령이 증가할수록 난청이 증가하고,4) 남성이 여성에 비해서 발병률이 높으며,8) 청력손실 정도도 증가하는데 남성의 경우 경중도의 고주파수로 갈수록 급격히 하강하고, 여성의 경우 경중도의 고주파수로 갈수록 완만하게 하강하는 형태를 보인

영문초록

The purpose of this study was to identify the word recognition difficulties in the hearing-impaired elderly according to frequency range and degree of hearing loss Word recognition scores were measured at the most comfortable level (MCL) and at a conversational level of 55 dB HL. This study included 10 normal-hearing and 90 impaired-hearing elderly subjects. The 90 hearing-impaired subjects were divided into 9 groups according to the combination of three frequency ranges of hearing loss (1,000-6,000 Hz, 2,000-6,000 Hz, & 3,000-6,000 Hz) and three degrees of hearing loss (26-35 dB, 36-45 dB, & 46-55 dB). At the most comfortable level, recognition scores revealed a range of 86-96% for all elderly groups. There was no significant recognition difference among three frequency ranges of hearing loss. Recognition performance decreased as degree of hearing loss increased. At a conversational level, recognition scores revealed a range of 68-96% for all elderly groups. Recognition performance was significantly deteriorated with increasing degree of hearing loss and increasing frequency ranges of hearing loss. When frequency range of hearing loss was wider than 2,000-6,000 Hz and when degree of hearing loss became greater than 36 dB, recognition performance was significantly poorer at a conversational level than at the most comfortable level. The results of this study show that frequency range and degree of hearing loss effects on word recognition in the elderly are significant if word is presented at a conversational level. These findings suggest that word recognition measured at a conversational level provides better prediction for communication difficulties in elderly listeners with impaired hearing. Moreover, it can be usefully applied for counseling and rehabilitation for the elderly with impaired hearing. KEY WORDS:Elderly with impaired hearing·Most Comfortable level (MCL)·Conversational level·Word recognition.

목차

INTRODUCTION  
MATERIALS AND METHODS 
RESULTS 
DISCUSSIONS AND CONCLUSIONS 
REFERENCES

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