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Audiol > Volume 11(4); 2015 > Article
Audiology 2015;11(4): 310-319.
Published online: October 31, 2015.
doi: http://dx.doi.org/10.21848/audiol.2015.11.4.310
청년, 중년, 노년군의 시간적 청각정보 처리능력 비교: GIN (Gaps-in-noise)과 시간압축 문장인지도 측정을 중심으로
박재경1,2, 이재희1
1삼성서울병원 이비인후과
2한림국제대학원대학교 청각학과
A Comparison of Auditory Temporal Processing in Young, Middle-aged, and Older Adults: Measure of GIN (Gaps-in-noise) and Time-compressed Sentence Recognition
Jae-kyeong Park1,2, Jae Hee Lee1
1Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Seoul
2Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea
Correspondence  Jae Hee Lee ,Tel: (02) 2051-4952, Fax: (02) 3453-6618, Email: leejaehee@hallym.ac.kr
Received: June 13, 2015; Revised: August 22, 2015   Accepted: September 24, 2015.  Published online: October 31, 2015.
ABSTRACT
To determine any age-related declines in auditory temporal processing, this study examined the ability to process temporal information using measure of gaps-in-noise (GIN) and of 40% time-compressed sentence recognition. Participants were fifteen young listeners, eleven middle-aged listeners, and twelve elderly listeners, and all had normal hearing. For the GIN test, both approximate gap detection threshold (msec) and detection performance in percent correct (%) were measured. For the test of sentence recognition, all the listeners were needed to repeat target sentences when the time-compressed sentences were presented without or with competing speech (0 dB SNR). Our results showed that GIN performance of young group was greater than that of middle-aged group, and the middle-aged group outperformed the elderly group. When the time-compressed sentences were presented with competing speech, young group exhibited superior performance relative to middle-aged group, and also the middle-aged group scored better than the elderly group. Overall, the GIN performance was related to the recognition ability of time-compressed sentences. This supports the previous findings that the ability of auditory temporal processing begins to decline at middle age.
Key Words: Middle-age, Auditory temporal processing, Temporal resolution, Time compression
중심단어: 중년, 시간정보처리능력, 시간분석력, 시간압축
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