To reduce the number of comparisons, resting-state connectivity was also analyzed using four ROIs (frontal, central, parietal, and occipital) as those used in the spectral analysis. The activity of the theta bands showed stronger connectivity in the right frontal-right parietal (t(68) = 2.55, uncorrected p < 0.01), central midline-occipital midline (t(68) = 2.49, uncorrected p < 0.01) and right parietal-occipital midline (t(68) = 2.47, uncorrected p < 0.01) in the BD group compared with the non-BD group. In terms of the upper alpha band, the BD group showed stronger connectivity in the right frontal-left frontal (t(68) = 1.81, uncorrected p < 0.05) and left frontal-left parietal areas (t(68) = 1.78, uncorrected p < 0.05) compared with the non-BD group. However, there was no significant result after applying the Bonferroni correction in the theta and upper alpha band.
