or as early as LSSs did. Moreover, HSSs were not as sensitive to the valence of the stimuli as were LSSs. The propensity for arousal in HSSs may override the valence or content of the arousing material. These differences between the sensation-seeking groups may reflect a stronger arousal focus in HSSs and a stronger valence focus in LSSs (Feldman, 1995). The present study not only has outlined a core network of brain regions involved in emotional reactivity and regulation, but also has demonstrated that these components are differentially modulated by sensation seeking and related personality dimensions.
