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Volume 13, Issue 1 (Spring 2011)
Advances in Cognitive Sciences 2011, 13(1): 15-24 |
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Badinloo F, Rahiminezhad A, Kharrazi K, Farahani H L. Resolution of Dual-task Interference in Persons with Right- or Left-Hemispheric Dominant Brains. Advances in Cognitive Sciences 2011; 13 (1) :15-24
URL: http://icssjournal.ir/article-1-313-en.html
URL: http://icssjournal.ir/article-1-313-en.html
1- psychology, University of Tehran, Tehran, Iran.
2- Assistant Professor, University of Tehran, Tehran, Iran.
3- University of Tehran, Tehran, Iran.
2- Assistant Professor, University of Tehran, Tehran, Iran.
3- University of Tehran, Tehran, Iran.
Abstract: (2846 Views)
Objective: This study investigated the effects of concurrent cognitive tasks on right or left hemispheric dominant brains.
Metods: Lateral Preference Inventory was administered on 787 girl students and, using purposive sampling method, 60 were selected as participants. After controlling participants’ handedness and intelligence, they were divided into two groups of 30 with right or left hemispheric dominant brains, and were tested against dual cognitive task interference.
Results: The independent t-test confirmed significant differences between the right and left hemispheric dominant brains’ reaction times, when and only when SOA was 50ms.
Conclusion: These findings supported the bottleneck theory of resolution of dual-task interference, and the difference between behavioral performance of right-and left-hemispheric dominant brains. They also suggested substantial impact of hemispheric dominance on cognitive functions, such as resolution of dual-task interference, instead of only control of handedness.
Metods: Lateral Preference Inventory was administered on 787 girl students and, using purposive sampling method, 60 were selected as participants. After controlling participants’ handedness and intelligence, they were divided into two groups of 30 with right or left hemispheric dominant brains, and were tested against dual cognitive task interference.
Results: The independent t-test confirmed significant differences between the right and left hemispheric dominant brains’ reaction times, when and only when SOA was 50ms.
Conclusion: These findings supported the bottleneck theory of resolution of dual-task interference, and the difference between behavioral performance of right-and left-hemispheric dominant brains. They also suggested substantial impact of hemispheric dominance on cognitive functions, such as resolution of dual-task interference, instead of only control of handedness.
Type of Study: Research |
Subject:
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Received: 2010/11/22 | Accepted: 2011/01/21 | Published: 2011/03/21
Received: 2010/11/22 | Accepted: 2011/01/21 | Published: 2011/03/21
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