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The dynamics of EEG brain patterns in the process of bistable image perception

Alexander N. Pisarchik, Maksim Zhuravlev, Alexander Hramov, Alexey Koronovskij, Vadim Grubov
In the paper we study 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) is proposed.
The paper presents the processing results of experimental data for 20 male volunteers.
Skeleton analysis allows us to identify specific patterns in the EEG data set, appearing in the perception of ambiguous objects. Thus, it becomes possible to diagnose some cognitive processes associated with the concentration of attention and recognition of complex visual objects. In addition, with enough confidence we define the periods of relaxation, In addition, we are with enough confidence defines the period of relaxation, appearing in the intervals between repeated moments of perception of ambiguous objects. Studies have shown that for a sufficiently long process of discontinuous perception of an object various volunteers at a different rate, but with a similar dynamic process of learning to "rest" (relaxation) between perceptions of ambiguous images.
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