Tarasova I V, Vol'f N V, Razumnikova O M
Fiziol Cheloveka. 2010 Jan-Feb;36(1):93-9.
The characteristics of cortical interactions depending on level of creative achievements were investigated in 40 right-handed subjects (22 men and 18 women). The subjects were divided into the two groups with high and low ability by the originality score median split. EEG was recorded in rest and during task performance (the verbal creative task "Cognitive synthesis"). EEG coherence was computed in the six frequency range from 4 to 30 Hz. Total values of coherence for each of 16 sites, calculated separately for intrahemispheric and interhemispheric connections were analyzed. It was revealed that subjects with higher originality scores (OS) in comparison to low original ones were characterized by decreased the theta 1.2 rhythms interhemispheric coherence, that was expressed in the frontal cortex, and increased beta1-rhythm interhemispheric coherence in the occipital and temporoparietal regions of the brain. The obtained results are discussed from the point of view of the contribution of the right and left hemispheres of the brain to processes "top-down" and "bottom-up" regulation during creative thinking.
在40名右利手受试者（22名男性和18名女性）中，研究了取决于创造性成就水平的皮质相互作用特征。根据原创性得分中位数分割，将受试者分为高能力和低能力两组。在静息状态和任务执行期间（言语创造性任务“认知综合”）记录脑电图（EEG）。在4至30Hz的六个频率范围内计算EEG相干性。分析了分别针对半球内和半球间连接计算的16个位点中每个位点的相干性总值。结果显示，与低原创性受试者相比，具有较高原创性得分（OS）的受试者的特征在于大脑额叶皮质中θ1.2节律半球间相干性降低，以及大脑枕叶和颞顶叶区域中β1节律半球间相干性增加。从大脑左右半球在创造性思维过程中对“自上而下”和“自下而上”调节过程的贡献角度讨论了所得结果。
