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Audiol > Volume 9(1); 2013 > Article
Audiology 2013;9(1): 60-65.
Published online: June 30, 2013.
doi: http://doi.org/10.21848/audiol.2013.9.1.60
정상 한국 성인의 역방향 모국어 단음절 청각 숫자 확장 기억 처리에 관한 비교 연구
임덕환1,2, 진선희3
1한림대학교 자연과학대학 언어청각학부
3한림대학교 일반대학원 언어청각학과
Comparative Studies on Backward Korean Monosyllabic Digit Span in Normal Hearing Adults
Dukhwan Lim1,2, Sunhee Jin3
1Division of Speech Pathology and Audiology, College of Natural Science, Hallym University, Chuncheon, Korea
2Research Institute of Audiology and Speech Pathology, Chuncheon, Korea
3Department of Speech Pathology and Audiology, Graduate School, Hallym University, Chuncheon, Korea
Correspondence  Dukhwan Lim ,Tel: (033) 248-2217, Fax: (02) 6280-9133, Email: dlim@hallym.ac.kr
Received: April 30, 2013; Revised: June 11, 2013   Accepted: June 18, 2013.  Published online: June 30, 2013.
Backward digit span was frequently adopted as a useful tool for evaluating auditory working memory and learning. The detailed response data, however, were not available for backward Korean digit span sets. In this study, backward Korean monosyllable digit spans were examined in normal hearing young adults with special reference to the previous forward Korean digit span data. The stimuli were synthesized in 1 to 10 Korean digit spans of male and female voices. They were randomly presented through the closed acoustic system for 20 subjects (10 males and 10 females). The corresponding backward digit span responses were recorded and analyzed on the custom-made computerized workstation. In this result, no statistically significant differences were observed in terms of the lateralization (left/right) and the gender of the subjects and speakers (p > .01). The average performance point of 50% was determined at the index value of about 6 in this backward Korean digit span study. This led to about 2 index differences from the average values of forward and backward digit span data (p < .01). This discrepancy corresponded to the additional processing in the backward digit span task model. In conclusion, the data exhibited the similar trends as those from backward digit spans with other languages. These backward and forward digit spans can contribute to exploring auditory memory functions and the related clinical implications.
Key Words: Backward digit span, Auditory working memory, Short-term memory, Korean monosyllabic digit
중심단어: 역방향 숫자 확장, 청각 작업 기억, 단기 기억, 한국어 단음절 숫자
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