TO GO WITH AFP STORY BY MARIETTE LE ROUX This handout image released by Nature on July 20, 2016 shows a map of myelin content (red, yellow are high myelin, indigo and blue are low myelin) in the left hemisphere of cerebral cortex. For years, doctors have had reliable charts of the body and its organs -- blood circulation, digestive system, nerves and the like -- but always with one frustrating grey zone: the brain. On July 20, 2016, a team of neuroscientists, computer specialists and engineers said they had compiled what "could be the most accurate map yet" of the mysterious expanse between our ears. / AFP PHOTO / NATURE PUBLISHING GROUP / Matthew F. Glasser AND , David C. Van Essen / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / NATURE / Matthew F. Glasser, David C. Van Essen" - NO MARKETING NO ADVERTISING CAMPAIGNS - TO ILLUSTRATE THE STORY AS SPECIFIED IN THE CAPTION - DISTRIBUTED AS A SERVICE TO CLIENTS / TO GO WITH AFP STORY BY MARIETTE LE ROUXMATTHEW F. GLASSER,, DAVID C. VAN ESSEN/AFP/Getty Images
