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청년, 중년, 노년군의 시간적 청각정보 처리능력 비교: GIN (Gaps-in-noise)과 시간압축 문장인지도 측정을 중심으로

A Comparison of Auditory Temporal Processing in Young, Middle-aged, and Older Adults: Measure of GIN (Gaps-in-noise) and Time-compressed Sentence Recognition

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초록

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.

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.

참고문헌 (35)

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