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Audiol > Volume 11(3); 2015 > Article
Audiology 2015;11(3): 233-239.
Published online: July 31, 2015.
doi: http://doi.org/10.21848/audiol.2015.11.3.233
복합 숫자 확장 자극의 길이, 언어, 성별 변수가 정상인의 청각 작업기억에 미치는 영향
임덕환1, 노영화2
1한림대학교 자연과학대학 언어청각학부, 청각언어연구소
2한림대학교 일반대학원 언어병리청각학과
Effects of a Speaker’s Language and Gender in Complex Digit Expansions on Auditory Working Memories of Normal Hearing Subjects
Dukhwan Lim1, Younghwa Ro2
1Division of Speech Pathology and Audiology, Research Institute of Audiology and Speech Pathology, College of Natural Sciences, Hallym University, Chuncheon
2Department of Speech Pathology and Audiology, Graduate School, Hallym University, Chuncheon, Korea
Correspondence  Dukhwan Lim ,Tel: (033) 248-2217, Fax: (033) 256-3420, Email: dlim@hallym.ac.kr
Received: June 13, 2015; Revised: July 1, 2015   Accepted: July 10, 2015.  Published online: July 31, 2015.
This study was to analyze the response properties of normal hearing young female adults (N = 29) in response to complex auditory digit expansions requiring both forward and backward working memory processes. The stimulus sets consisting of middle, front, and back digit combinations were digitally synthesized in the sequential length patterns of 3, 6, and 9 Korean and English digits. Individual digit spans had male and female voice options. They were randomly presented through the closed acoustic system and the corresponding performances were analyzed with special references to a speaker’s language and gender. The results were as follows: First, statistically significant differences were noted in Korean and English versions of complex digit sequences of the length six (p < .01). Second, there were no statistically significant preferences in the gender of the speaker in 3, 6, 9 length sessions of the complex digit patterns (p > .01). Third, the average values of the 50% performance index point were reduced in the order of complex digit span, backward digit span, and forward digit span. In summary, the data showed quantitative measures of the working memory consumptions and language dependency in complex digit sequences. Results can be used as initial reference data for the complex auditory digit expansion studies. This complex digit sequence procedure may also be clinically applied for screening memory-related disorders and impaired cognitive functions.
Key Words: Auditory working memory, Complex digit expansion, Speaker variables
중심단어: 복합 숫자 확장, 청각 작업 기억, 화자변수
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