You don't need a scientists to tell you that 11 people playing video games 10 hours a day for a week is not even close to a thorough and conclusive study on long-term effects. 11 people is not a big enough sample size. 1 week (plus 1 week study) is not long term. The minor before and after difference is what anybody would expect after playing games for
10 hours a day every day. Did they try the same with non-violent video games? Did they try the same with football or other sports? Does this correlate at all with any kind of violence on the part of the study subjects?
So, the only violent game that I have been exposed to is Vice City. While playing it, my 35 year old cousin actually killed an innocent pedestrian for no benefit. I hated the fact that there was no consequence for that in the game. If the creator would have wanted he could have prevented such happenings, at least for the sake of the children. They might as well add the feature of blowing up casinos. If the game was just about killing the enemies/human obstacles, irrespective of whether they are good or bad, I would have been OK with it. After all it's a game about a man who is out there committing felony.
One time on GTA5, I found a suitable roof vantage point overlooking a busy city intersection. I went down into the street, carjacked several cars, killing anyone who put up a fight, and parked the stolen cars across roads to create a bottleneck with the intention of creating a traffic jam. When the intersection was packed with stopped cars that couldn't go anywhere, I ran back up to my vantage point and rained grenades and molotovs down on them, causing a chain reaction of exploding cars and people. Pedestrians ran screaming in all directions, which I gunned down with glee using my assault rifle. My wanted level quickly went up to full 5 stars. When the police came in droves, then the SWAT, then the army, I killed them all without flinching. Wave upon wave of them. I lost count of how many I killed. I kept running out of people to shoot at. It was such a rush. The endless waves eventually overwhelmed me and wasted me. I woke up a few seconds later at the nearest hospital with my wanted level reset and a small medical bill. Then I went to meet a friend and had pasta.
What do you think about that?