How do social computations in sgACC relate to sgACC’s involvement in non-social processes? SgACC is closely connected to several areas involved in social cognition and reward processing (Moll et al., 2005). As mentioned above, compared to pgACC and other dorsal medial prefrontal areas, sgACC is more strongly connected to subcortical regions such as the basal forebrain than most areas in dorsal parts of medial prefrontal cortex (Beckmann et al., 2009; Moll et al., 2005; Palomero-Gallagher et al., 2015). These subcortical areas have long been linked to bonding, autonomic arousal and emotional responses (Moll et al., 2005; Rudebeck et al., 2014). Yet due to the difficulty in causing focal lesions to sgACC (Rudebeck et al., 2014), a paucity of studies in non-human animals have been conducted. One recent study showed that lesions to the sgACC lead to disruptions in the maintenance of autonomic arousal associated with positive emotional events (Rudebeck et al., 2014). From this perspective, social prediction errors in sgACC might reflect the relevance of other people for one’s own emotional state triggering changes in emotional arousal. On the other
