CHRISTOPHER CHABRIS is a senior investigator at the Geisinger Health System in Pennsylvania and a psychology professor and co-director of the neuroscience program at Union College. He received his Ph.D. in psychology and A.B. in computer science from Harvard University. He is the co-author of The Invisible Gorilla, and Other Ways Our Intuitions Deceive Us. He shared the 2004 Nobel Prize in Psychology (awarded for “achievements that first make people laugh, and then make them think”), given for the experiment that inspired the book. He is also a chess master, a poker amateur, and a contributor to the Wall Street Journal and other national publications.