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[ROLES OF RATIONAL-IRRATIONAL COGNITIVE STYLES IN THE ALPHA RHYTHM REACTIVITY DURING CONVERGENT AND DIVERGENT
Abstract:
Changes of the alpha1 and alpha2 rhythms during convergent (addition in the mind) and divergent (heuristic task solving) thinking due to rational and irrational cognitive styles were studied. It is shown that the functional activity of the cerebral cortex during convergent thinking was associated with rational style and presented in parietal low-frequency alpha1 biopotentials whereas during divergent thinking - with the irrational, and this effect was produced by widespread regional and frequency differences of alpha1 and alpha2 oscillations in posterior cortex. The originality of ideas correlated with the alpha desynchronization in the posterior cortex in the persons with high intuition, whereas the persons with low intuition characterized by the alpha synchronization.
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