Primary Research:
I did a Interviews/vox pop with two of my friends to see what they thought about this subject.
https://www.youtube.com/edit?o=U&video_id=5Mpk03q7jWE
Secondary Research:
http://www.gamification.co/2014/09/04/how-video-games-affect-teenagers/
Over the last 15 years there has been a great amount of debate and talking about how video games are shaping the minds and behavior of young people. Video game addiction has become a concern, and some researchers suggest impressionable adolescents may be driven to brutality by the violent fantasy world of video games that they immerse themselves in.
When playing video games it releases a hormone called Dopamine. Dopamine is a feel-good hormone, is naturally occurring in the brain and might be responsible for reward-driven behavior. According to recent studies, those who play video games have high releases of dopamine as they play, similar to if they were to take a synthetic drug. This may show why some people use it to escape video game addictions grow out of this desire to escape. While there is no proper evidence linking playing video game with violent tendencies, researchers warn that socially isolated teens who immerse themselves in video games may be struggling with deeper issues, that may of something happpening the past or despair and anger.
“Simply put, no, not necessarily. Video games, just like any other activity, is best if used in moderation. In fact, there are some very positive attributes to game playing. Video game, as argued by proponents, can help a young teen develop a greater sense of self and help to hone problem-solving skills. Games that offer an “open world” concept are particularly good for developing better problem solving skills, say gaming enthusiasts. Research has also found that video games can help with visual perception, and may also help kids develop task management skills, particularly multi-tasking.”
http://www.health.harvard.edu/newsletter_article/violent-video-games-and-young-people
“Blood and gore. Intense violence. Strong sexual content. Use of drugs. These are just a few of the phrases that the Entertainment Software Rating Board (ESRB) uses to 
describe the content of several games in the Grand Theft Auto series, one of the most popular video game series among teenagers. The Pew Research Center reported in 2008 that 97% of youths ages 12 to 17 played some type of video game, and that two-thirds of them played action and adventure games that tend to contain violent content. (Other research suggests that boys are more likely to use violent video games, and play them more frequently, than girls.) A separate analysis found that more than half of all video games rated by the ESRB contained violence, including more than 90% of those rated as appropriate for children 10 years or older.”
Quantitative Research:
90% of pediatricians and 67% of parents agreed or strongly agreed that violent video games can increase aggressive behavior among children.
http://www.health.harvard.edu/newsletter_article/violent-video-games-and-young-people
The Pew Research Center reported in 2008 that 97% of youths ages 12 to 17 played some type of video game, and that two-thirds of them played action and adventure games that tend to contain violent content. (Other research suggests that boys are more likely to use violent video games, and play them more frequently, than girls.)
Source: PEW Internet & American Life Project, September 2008.
Qualitative Research:
http://www.bbc.co.uk/news/technology-33960075
“We focused on the motives of people who play electronic games and found players have a psychological need to come out on top when playing,” said Dr Andrew Przybylski
In Europe, games are given age-related ratings in accordance with the Pan-European Game Information (Pegi) system.
There are five age ratings – three, seven, 12, 16 and 18.
“The problem is that violence is hard to classify, a Pegi 18 certificate may contain scenes of “gross violence“
“Gross violence is the most difficult to define since it can be very subjective in many cases, but in general terms it can be classed as the depictions of violence that would make the viewer feel a sense of revulsion,” “
Own Thoughts and Conclusion:
I think that some do all violent video games have effect on teenagers and some don’t it all depends. I think if a younger person who plays a mature games might be effected due to that they aren’t mature enough or understand what is real and what isn’t real. Yes some people may play games to escape or relax. But teenagers who have had troubling times might be more effected. In all i am kind of on the line of yes and no and that depends on who mature the teenagers are and how they cope with it. I don’t think its just video game violence that have a major effect also movie violent ( how violence is on the screen).
nicholaspagemediablog 