Acoustic Change Complex에 기반한 와우소실영역 검사의 객관적인 방법 제시를 위한 예비 연구

강수진; 한주현; 우지환; 박희성; 문일준; 최규성; 홍성화

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자료유형: 학술저널

저자정보: 강수진 한주현 우지환 박희성 문일준 최규성 홍성화

저널정보: 대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후과학회지 두경부외과학 제61권 제11호

발행연도: 2018.1

수록면: 573 - 579 (7page)

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Background and Objectives Cochlear dead region (CDR) is a region in the cochlear wherehearing loss has occurred due to damage to the inner hair cells and/or neurons. Recently, a subjectivetest involving a pure-tone test in the presence of threshold-equalizing noise (TEN) wasintroduced to identify CDR. However, for uncooperative patients, such a subjective methodwould be unsuitable and objective methods would be needed instead to detect CDR. The acousticchange complex (ACC) is an evoked potential elicited by changes in the ongoing sound. In thisstudy, we developed an objective method of identifying CDR by combining ACC response witha TEN test, namely the TEN-ACC test, and investigated its feasibility in normal-hearing listeners. Subjects and Method Ten normal-hearing subjects participated in this study. All subjectsunderwent both behavioral TEN test and electrophysiological TEN-ACC test. The stimuli forthe TEN-ACC test consisted of TEN and embedded pure tones with different frequencies/signalsto noise ratios (SNRs). To identify the thresholds, the range SNR of stimulation was variedfrom 0 to 20 dB, in stages of 4 dB. Results The ACC responses of all subjects who participated in this study were well elicited bystimuli developed for the TEN-ACC test. We confirm that the pure-tones embedded in TENelicited the objective ACC response. Conclusion The results of this study suggest that the novel TEN-ACC test can be applied toevoke ACC in normal-hearing listeners. Future research should incorporate hearing-impairedlisteners to determine the feasibility of the TEN-ACC test as an objective method to identifyCDR.

참고문헌 (16)

참고문헌 신청

Moore BC / 2001 / Dead regions in the cochlea: diagnosis, perceptual consequences, and implications for the fitting of hearing AIDS / Trends Amplif 5(1):1~34

Moore BC / 2004 / Dead regions in the cochlea: conceptual foundations, diagnosis, and clinical applications / Ear Hear 25(2):98~116

Vinay / 2008 / Speech recognition in noise as a function of highpass-filter cutoff frequency for people with and without lowfrequency cochlear dead regions / J Acoust Soc Am 123(2):606~609

Vinay / 2007 / Speech recognition as a function of high-pass filter cutoff frequency for people with and without low-frequency cochlear dead regions / J Acoust Soc Am 122(1):542~553

Cox RM / 2012 / Implications of high-frequency cochlear dead regions for fitting hearing aids to adults with mild to moderately severe hearing loss / Ear Hear 33(5):573~587

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