Figure 1 illustrates three of the brain regions showing significant differential effects of, or interactions with, sensation seeking, as confirmed by the three-way ANOVAs described earlier. These regions are highlighted because they have been consistently implicated in emotional processing and individual differences in other brain-imaging studies (Cunningham, Raye, & Johnson, 2005; Eisenberger, Lieberman, & Satpute, 2005; Kringelbach & Rolls, 2004; Paulus, Rogalsky, Simmons, Feinstein, & Stein, 2003; Suhara et al., 2001). As expected, the ANOVAs revealed main effects for arousal in all of the regions listed in Table 1; most of these regions showed a Sensation Seeking × Arousal interaction, and one region showed a main effect of sensation seeking. None of these regions showed interactions between sensation seeking and valence. Some of these regions also showed correlations with the personality measure of urgency (see Table 2).
