http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. The massacre of 26 people, mostly young children, at a US school has revived the perennial debate about the impact of violent videogames on the warped minds of gunmen behind such tragedies. http://medicalxpress.com/news/2012-12-revives-debate-videogame-violence.html Psychology & Psychiatry Wed, 19 Dec 2012 11:29:27 EST news275138961 New research shows that high school students experience excessive daytime sleepiness (EDS), with most students sleeping fewer than 7 hours per night. http://medicalxpress.com/news/2012-10-excessive-daytime-sleepiness-common-high.html Health Mon, 22 Oct 2012 04:06:13 EST news270097564 A team led by psychology professor Ian Spence at the University of Toronto reveals that playing an action videogame, even for a relatively short time, causes differences in brain activity and improvements in visual attention. http://medicalxpress.com/news/2012-04-action-videogames-brains.html Neuroscience Thu, 26 Apr 2012 11:52:07 EST news254659918 (Medical Xpress) -- Violent media -- films, TV, videogames -- can encourage aggression, and lots of research says so. But psychologists haven't spent as much time looking at the ways media with more socially positive content help suppress meanness and prod us toward cooperation, empathy, and helpfulness. When and why might a game or a movie mobilize our better angels and squelch our devils? http://medicalxpress.com/news/2011-07-media-side.html Psychology & Psychiatry Thu, 21 Jul 2011 07:28:21 EST news230452078