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. 2014 Aug 7;8:601. doi: 10.3389/fnhum.2014.00601

FIGURE 2.

FIGURE 2

EEG power spectral density of B, SS, PSS, AS, and PAS (EO condition) for electrode O2 (mean of all subjects). Even if there are no significant effects considering the whole session duration, there is a significant peak increment in theta and alpha bands during stimulation. These effects are significant in the analysis of time effects.