Abstract
The aim was to investigate the peculiarities and localization of the current source density of α- and θ-frequency bands accompanying competition and cooperation with another player, as well as individual figure building in a computer game. The sample included forty-two volunteers (24 females) between the ages of 18 and 47. Analysis of differences in the current source density of 127 channel EEG under different game conditions was performed in the eLoreta program. During competition, the θ-current source density in the anterior cingulate cortex and medial prefrontal cortex was greater than during cooperation. According to the literature on functional correlates of θ-rhythm, it can be suggested that the greater increase in medial frontal θ-rhythm detected during competition may be related to focused attention and cognitive control processes. The alpha current source density in the parietal and visual cortex areas during interactive game modes (cooperation and competition) was lower compared to the individual mode. During cooperation the α-current source density was lower compared to the competition mode. The greatest decrease of the α-current source density in the cooperation mode is consistent with idea of a relation between α-rhythm decrease and the processes of understanding the other person’s intentions.
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