Volume 14, Issue 1 (Spring 2012)                   Advances in Cognitive Sciences 2012, 14(1): 1-10 | Back to browse issues page

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Jafari Z, Aghamollaei1 M, Toufan R, Esmaili1 M, Rahimzadeh S, AsadMalayeri S. Effects of Handedness and Gender on Auditory Attention in Bergen Dichotic Listening. Advances in Cognitive Sciences. 2012; 14 (1) :1-10
URL: http://icssjournal.ir/article-1-421-en.html
1- Tehran University of Medical Sciences Faculty of Rehabilitation, Tehran, Iran.
2- University of Social and Welfare Rehabilitation Sciences, Tehran, Iran.
Abstract:   (2134 Views)
Objective: The effects of handedness and sex were studied by Bergen Dichotic listening test that measures both divided and selective attentions.
Method: Persian version of the Bergen dichotic listening test was used to evaluate non-forced attention, attention to right and attention to left ears on 75 young adults including 54 right-handed and 21 left handed individuals with normal hearing in age range of 18 to 30 years old.
Results: Right ear advantage (REA) with mean score of 78.4% and 94.7% in the two conditions of non-forced attention and attention to the right ear, and left ear advantage (LEA) with mean score of 81.3% in attention to the left ear were obtained. Sex had no effect on the results, but significant difference was found between right and left hand people in non-forced attention and attention to the right (p<0.029).
Conclusion:Top-down processing of brain cortex in selective attention modulated bottom-up processing in divided attention task by change of right ear advantage. Our results showed the application of Bergen dichotic listening test to evaluate auditory attention, language laterality and handedness.
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Type of Study: Research | Subject: Special
Received: 2011/11/22 | Accepted: 2012/01/21 | Published: 2012/03/20

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