Figure 2.

Between-subject analyses—correlations between facial expressiveness and brain responses: facial expressiveness was positively correlated with stronger brain activation in M1 (face area) and in several pain-related areas (top). In contrast, the degree of facial expressiveness in response to painful heat was negatively correlated with activation in prefrontal areas and caudate nucleus (bottom). *Directed search threshold at T = 2.84 (p = 0.05). Bonferroni-corrected for 12 pain-related regions.