Fig. 1: Interactions were found between ventral/dorsal striatum and the MFG.

a ROIs selected for the ventral and dorsal striatum in the current study. Left hemispheric regions are shown. Green: NAcc; Red: Caudate; Blue: Putaman. b Brain regions that show functional connectivity interactions with the ventral/dorsal striatum seeds and diagnostic groups. c, d Plots demonstrating the interaction on functional connectivity strength between ventral striatum/putamen and left and right MFG in IGD and RGU subjects. e, f Strength of the functional connectivity between the VS/putamen and left or right MFG in IGD and RGU subjects. IGD: 174 subjects; RGU: 244 subjects. *p < 0.05; **p < 0.01.