John Hopson is the head of User Research at Bungie and has been the lead researcher for a wide variety of games ranging from AAA blockbusters (Halo, Age of Empires) to small indie games (Trials HD, Shadow Complex). He's also the author of a number of articles on the intersection of research and games, including the infamous 'Behavioral Game Design'. John holds a Ph.D. in Behavioral and Brain Sciences from Duke University and is currently the chairman of the IGDA Games User Research SIG.