In this webcast, we peered inside the thinking brain, using state-of-the-art functional magnetic resonance imaging. A live video link connected us to the Richard M. Lucas Center for Imaging at Stanford University, where scientists Gary Glover and John Desmond conducted cognitive tests on an Exploratorium staffer. Imaging tools displayed the active areas of the brain in real time. Does the human brain respond differently to the Rolling Stones than to Enya? Watch this archived webcast and find out!