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Perception of multistable images: EEG studies

Vadim Grubov, Anastasiia Runnova, Maksim Zhuravlev, Vladimir Maksimenko, Svetlana Pchelintseva, Alexander Pisarchik
In the paper we studied the dynamics of the complex patterns in human EEG data during a psychophysiological experiment by stimulating cognitive activity with the perception of ambiguous object. A new method based on the calculation of the maximum energy component for the continuous wavelet transform (skeletons) was proposed. The paper presented the processing results of experimental data for 20 male volunteers. Skeleton analysis allowed us to identify specific patterns in the EEG data set, appearing during the perception of ambiguous objects. Thus, it became possible to diagnose some associated cognitive processes. We found complex dynamics in delta, alpha and beta frequency ranges on EEG during the bistable image perception. We believe that this dynamics could be associated with processes of concentration of attention and recognition of complex visual objects.
CYBERNETICS AND PHYSICS, Vol. 6, No. 3. 2017, 108-113
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