O. M. Razoumnikova

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This study examined the task-related changes in EEG patterns during the experimental condition of convergent and divergent thinking in 36 healthy male subjects. EEG was recorded from 16 sites (10/20 system). After FFT a power was calculated for all 16 loci, and a coherence was estimated for all 120 electrode pairs in six frequency bands (4-30 Hz). Different(More)
The frequency–spatial organization of the brain cortex activity of men and women was studied during convergent (CTh) and divergent (DTh) thinking by means of EEG power mapping in a broad frequency band. Right-handed 17- to 23-year-old students (36 men and 30 women) participated in the study. Mental arithmetic was used as a model of CTh. Functional changes(More)
The EEG correlates of the verbal, numerical, and figural IQ components according to the power and coherence characteristics of the baseline EEG in six frequency bands were studied taking into account personality traits of subjects (extroversion, neuroticism, psychoticism, and anxiety). Analysis of variance and correlation showed that a decreased power of(More)
The gender dependence of inter- and intrahemispheric interactions of neuronal assemblies during convergent (CTh) and divergent (DTh) thinking was studied on the basis of analysis of coherence (Coh) of cortical potentials in a broad frequency band. CTh was studied with a model of mental arithmetic, and DTh, with a heuristic task. Right-handed subjects were(More)
Parameters of cortical interactions depending on the level of creative achievements were studied in 40 right-handed subjects (22 men and 18 women). EEG was recorded at rest and during performance of a verbal creativity task (the Cognitive Synthesis test). The subjects were divided (by the median split) into groups with high and low originality scores (OSs).(More)
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