Intra- and interhemispheric coherence levels were analyzed using the following factors: 1) intrahemispheric coherence was evaluated according to group (IGD, AUD, and HC) × region (fronto-central, fronto-temporal, fronto-parietal, centro-temporal, centro-parietal, and temporo-parietal) × hemisphere (left and right) and 2) interhemispheric coherence was evaluated according to group (IGD, AUD, and HC) × region (frontal, central, temporal, and parietal). Next, Bonferroni-corrected post hoc comparisons were conducted using pairwise analyses; P-values = 0.0167 were considered to indicate statistical significance.
