A, Group differences between non-AP musicians and non-musicians in graph-theoretical measures calculated based on whole-brain functional networks (pFWE < 0.05). Gray-shaded area represents range of thresholds belonging to statistically significant cluster. B, Subnetwork with increased functional connectivity in non-AP musicians compared with non-musicians obtained in the NBS analysis (pFWE < 0.05). ACC, anterior cingulate cortex; aSMG, anterior SMG; aSTG, anterior STG; cOp, central operculum; fOp, frontal operculum; pSMG, posterior SMG; pSTG, STG, posterior division.