Fig. 3

ROI analyses revealed a significant group-by-reward type interaction effect in the caudate nucleus with greater dorsal striatum activation for interest reward (IR) than social reward (SR) in youth with ASD, while TDCs did not show significant differences—although a reverse direction—in their response pattern to both reward types. Bar graphs depict mean β values from the bilateral caudate cluster identified by the significant interaction effect. The ROI was anatomically defined based on the Harvard-Oxford structural probabilistic atlas. Results are FEW corrected at p ≤ 0.05 across this particular region. Color bar indicates t-statistics