John Allman is the Frank P. Hixon Professor of Neurobiology, California Institute of Technology. Evolution of the brain and behavior in primates. The anatomy and physiology of the visual system in primates. The role of frontoinsular and anterior cingulate cortex in emotion and cognition. Functional magnetic resonance imaging of economic decision-making. Recent book: Evolving Brains, Scientific American Library/WH Freeman, 2000.