The first time I played chess as a child, I was defeated handily by my father. A rudimentary knowledge of the rules and reaction to my opponent's moves weren't enough to match an experienced player. In the following weeks and months I gradually learned the relative value of my available moves, and how they would impact the game in the future. I could infer my opponent's possible counter actions. I finally won. How does the brain achieve this remarkable feat? I study the computations underlying such sophisticated cognitive behaviors in order to develop next generation neurotherapies for the treatment of severe mental health disorders, many of which manifest as maladaptations in corticolimbic networks.