Jessica Sommerville (Univ of Washington) reviews evidence to suggest that, within the first year of life, infants develop an understanding of transient mental states (such as goals and desires), enduring personal dispositions (such as preferences), and socio-moral norms (such as fairness norms), that is driven by their own actions on the world, as well as their interactions with other people. Recorded on 10/18/2013. (#26082)