Regional homogeneity of resting state fMRI signals predicts Stop signal task performance

► Individual variation in inhibition was analyzed based on resting fMRI (RS-fMRI). ► Inhibition abilities were evaluated by the stop signal reaction time (SSRT). ► The spontaneous activity was evaluated by regional homogeneity (ReHo) of RS-fMRI. ► Significant ReHo-SSRT relationships were found in the IFC and default mode network. ► The IFC and default mode network may influence the efficiency of inhibition.