Paul M. Matthews, M.D., is vice president for imaging, genetics, and neurology in clinical pharmacology and discovery medicine at GlaxoSmithKline (GSK) and head of the GSK Clinical Imaging Centre,Hammersmith Hospital, London. He is also professor of clinical neurosciences at Imperial College, London, and (honorary) MRC clinical research professor at the University of Oxford. He is the co author, with Jeffrey McQuain, of The Bard on the Brain: Understanding the Mind Through the Art of Shakespeare and the Science of Brain Imaging (Dana Press 2003), author of more than 100 scientific articles, and author or contributor to more than 50 books. He received a Ph.D. in biochemistry from Oxford and an M.D. from Stanford University School of Medicine. He can be contacted at email@example.com.