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Mean node betweenness centrality for both participants shown in color only at the sensors with an incremental trend in comparison to the other condition. For each frequency band, the heads to the left (A,C,E) show the cases when the node betweenness centrality in 1PP increased in comparison to 3PP, while the heads to the right (B,D,F) show those for which 3PP increased in comparison to 1PP. No increase in node betweenness was found in α.
