ANTONIO DAMASIO is the David Dornsife Professor of Neuroscience and Director of the Brain and Creativity Institute at the University of Southern California. He is also an adjunct professor at the Salk Institute for Biological Studies in La Jolla. He is a member of both the Institute of Medicine of the National Academy of Sciences and the American Academy of Arts and Sciences. Descartes' Error was an international bestseller. The Feeling of What Happens is being translated into seventeen languages.