Marcel Just squints to make sure he's seeing the monitor correctly. He's viewing an fMRI brain scan of a study participant who talked on a cell phone while in a driving simulator. It shows the amount of brain activity related to driving had dropped by a startling 37 percent. The research by Just—director of the university's Center for Cognitive Brain Imaging and professor of psychology—is so compelling that it helped spur the National Safety Council to call for a ban on cell phone use for anyone behind the wheel.
—Elizabeth May
