Apparently believing is seeing, not the other way around. Thanks to a fascinating study conducted in at MIT’s Reserve Officers Training Corps, we know that the mind can actually dictate physical vision. The students participating in the study—none of whom were training to be pilots in real life—unknowingly entered a flight simulator in one of two conditions, and also took vision tests along the way. The first group wore army fatigues and did flight maneuvers on a high-tech screen; the others were told the simulator was broken, and had to role-play being pilots themselves. It seems all the Top Gun-ing really worked some magic on the first group: 40 percent had better vision inside the simulator versus before, whereas no one in the second group did.
VIDEO: The Anatomy of Vision