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:: Volume 7, Issue 2 (Spring - 2019) ::
Shefaye Khatam 2019, 7(2): 33-43 Back to browse issues page
The Role of Functional Synchronization of Alpha Waves in Divergent and Convergent Thinking
Emad Aazr , Imanollah Bigdeli * , Ali Ghanaei Chamanabad
Department of Psychology, Faculty of Psychology and Educational Sciences, Ferdowsi University of Mashhad, Mashhad, Iran , ibigdeli@um.ac.ir
Abstract:   (15380 Views)
Introduction: Alpha frequency band in the range of 8-12 Hz is associated with cognitive functions, such as creativity. The aim of this study was to examine the activity of the alpha frequency band in two divergent and convergent thinking positions. Materials and Methods: In accordance to the available sampling and voluntary participation, thirty-eight postgraduate students of the Ferdowsi University of Mashhad (19 males and 19 female) were chosen. Two subjects were excluded from the analysis due to artifacts in their brain waves. This study was a quasi-experimental research with repeated measures. The EEG was recorded during the performance of four tasks (alternative uses test, counting the snakes, counting numbers test, and Missionaries and Cannibals task) in two divergent and convergent thinking. Results: The findings revealed that there is no significant difference between the activity of alpha waves in the left and right hemispheres in divergent thinking as well as in convergent thinking. In addition, the results of the analysis of variance of repeated measures indicated that in divergent thinking activity of alpha waves in the temporal, central and frontal areas were synchronized, while in the convergent thinking position de-synchronization of alpha waves was observed. Conclusion: Alpha band power changes in two divergent and convergent thinking positions represented of different functional mechanisms of alpha waves in these two thinking positions in different regions of the brain.
Keywords: Electroencephalography, Brain, Thinking
Full-Text [PDF 1231 kb]   (2328 Downloads)    
Type of Study: Research --- Open Access, CC-BY-NC | Subject: Neurophysiology
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Aazr E, Bigdeli I, Ghanaei Chamanabad A. The Role of Functional Synchronization of Alpha Waves in Divergent and Convergent Thinking. Shefaye Khatam 2019; 7 (2) :33-43
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Volume 7, Issue 2 (Spring - 2019) Back to browse issues page
مجله علوم اعصاب شفای خاتم The Neuroscience Journal of Shefaye Khatam
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