That's what researchers are saying at the APA convention in Boston. Studies from Fordham University and Iowa State University are cited in an online CNN article: http://www.cnn.com/2008/TECH/ptech/08/18/videogames.learning.ap/index.html?eref=rss_tech
Laparoscopic surgeons who played video games were 27 percent faster at advanced surgical procedures and made 37 percent fewer errors than those who didn't!
Parents and teachers have long suspected what was confirmed by other studies: "students who played violent games tended to be more hostile, less forgiving and believed violence to be normal compared to those who played nonviolent games. And those who played more entertainment games did poorer in school and were are greater risk of obesity."