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  • Title: [Relationships between theta- and beta-oscillations and the level of creative achievement].
    Author: Vol'f NV, Tarasova IV.
    Journal: Fiziol Cheloveka; 2010; 36(2):15-22. PubMed ID: 20432687.
    Abstract:
    The interrelations between the level of creative ability and features of baseline power and event-related desynchronization/synchronization (ED/ES) of the theta and beta rhythms during a figural creative task (Torrance Test "Incomplete figures") in conditions of different motivation were studied. Increased motivation was induced by instruction "to create most unique images" in comparison with instruction "to create images". The subjects, right-handed students (14 males and 14 females), were divided into groups with high and low originality scores. Baseline theta2 and beta1,2 power and ED/ES of the rhythms were related to creativity level and sex of participants. These relationships were found only under instruction "to create images". Males with higher originality scores differed from males with lower originality scores by more pronounced ED in temporal-parietal-occipital regions of the brain. Such differences were absent in women. In the betal band, during task performance the high-creative men demonstrated ED in contrast to ES that was demonstrated by the high-creative women. Analysis of the beta1,2 reference power showed that only in the high-creative women beta1 power was higher in the caudal then in the frontal hemispheric regions. The high creative participants of different genders had different laterality patterns of activity in electrode loci Fp1/2 (betal) and Fp1/2, F7/8 (beta2). The obtained results allow to suggest that high creativity in men and women is related to gender specific patterns of frontal-occipital and lateral organization of activity of theta and beta brain oscillators.
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