JONAH LEHRER is a contributing editor at Wired magazine, and his blog, Frontal Cortex, appears on the Wired website. He is a columnist for the Wall Street Journal and has also written for the New York Times, Boston Globe, New Yorker, Nature, and other periodicals. He has published two books, Proust Was a Neuroscientist in 2007 and How We Decide in 2009.