Functional connections between anatomical ROIs for the theta (A), alpha (B), beta (C), and gamma (D) bands using the pl_pps. The connections (edges) in this figure are transformed to z-values and plotted with the same threshold. Thicker lines are edges with stronger FC. Brain ROIs belonging to different lobes are plotted in different colors—frontal ROIs in blue, temporal ROIs in green, central and parietal ROIs in yellow, and occipital ROIs in red.