Researchers watch dopamine changes in brain of video game players May 21, 1998 Web posted at: 12:19 PM EDT (1219 GMT) LOS ANGELES (AP) -- Brain scans of men playing video games detected changes in the levels of the brain-signaling chemical dopamine, an observation that could improve understanding of the chemical basis of human behavior. - - - - - - - - Go to: http://www.cnn.com/TECH/science/9805/21/dopamine.ap/ to read the rest of this copyrighted article. DaHawk, 59/3