Brain Scans Challenged
FILE – This Jan. 30, 2006 file photo shows a functional magnetic resonance imaging scan on a computer screen at an Emory University lab in Atlanta. Using large magnets, the scans detect where oxygenated blood flows, allowing scientists to indirectly measure brain activity. Researchers are becoming increasingly critical of some brain scan studies that purport to show exactly how our minds shape our behavior. (AP Photo/Ric Feld, File)