Fig. 4.
Training effects on functional connectivity as measured with gPPI. (A) Regions where musicians, relative to nonmusicians, showed significantly stronger (PFWE < 0.01, mixed-effects ANOVA) PPI with the left (Left) or right (Right) auditory seed (individually defined anatomical ROIs: pSTG + PT). Yellow line shows the contour of anatomically defined dorsal precentral gyrus (Left) and central sulcus (Right). (B) A significant group × SNR interaction (PFWE < 0.01, mixed-effects ANOVA) was revealed for the PPI between the right auditory seed and four regions (bilateral vPMC, left AG, and right aSTG). Yellow line shows the contour of anatomically defined ventral precentral gyrus. *P < 0.05, **P < 0.008 by independent-sample t tests, uncorrected. Error bars indicate SEM.