Fig. S1.

Parametric whole-brain regression analysis isolating brain regions tracking target popularity during the face-viewing task (Table S4). Clusters were thresholded at P < 0.001, k = 44 voxels (whole-brain FWE-corrected, P < 0.05, two-tailed) except as noted below. For the VS and amygdala, subcortical structures of a priori interest, results were thresholded with small volume correction, FWE-corrected P < 0.05, two-tailed. Replicating the findings of the ROI-based approach, activity in the same core valuation (vmPFC, amygdala, VS) and social cognition (dmPFC, precuneus, lTPJ) regions tracked significantly with target popularity. The analysis also revealed a cluster in middle frontal gyrus, but was otherwise selective for our a priori hypothesized ROIs. Although the whole-brain analysis used a two-tailed hypothesis to allow for testing of brain regions in which activity tracked negatively with target popularity, no such regions were found.