More agression in video games.

Also on http://www.bbc.co.uk/ I found another study which showed the negative sides of video gaming.

Dr Craig Anderson from Iowa State University of Science and Technology and Dr Karen Dill, from Lenoir-Rhyne College carried out two studies.

The first showed that young men who are habitually aggressive may be particularly vunerable to the effects of repeated exposure to violent games.

The second showed that everybody can become temporaliy more aggressive after even a brief exposure to violent video games.

In the firs study 227 college students were asked to rate their level of aggression. Dr Anderson said: "we found that students who rorted playing more violent video games in junior high engaged more in aggressive behaviour. We also found that the amount of time spent playing video games in the past was associated withlower academic grades in college."

In the second study, 210 college students played either a violent video game (Wolfstien 3D) or non-violent video game (Myst).

A short tim later the students whom played the violent video games were found to be more aggressive that who played non violent video games. Dr Anderson said : "Violent video games provide a forum for learning and practising aggressive solutions to conflict situations."

Positive Video Games.

On the website http://www.bbc.co.uk/ i found an article expressing positive thoughts on video games and this is what they said:

Teenagers learn more from video games than from books, a survey suggests.

Research found youngsters learned more effectively from information presented in audio visual form such as a video game than from facts printed on the page.

SonyPlaystation commissioned the study on 13-14 year olds. Psychologist Dr David Lewis, who carried outthe study, discovered more than three-quarters absorbed facts contained in an historical video game as oppesed to just more than half who were preseted with the same informationin written form.

Dr Lewis used MediEvil 2, a games set in Victorian Times, to test children.

Video Games and Teenagers.

Since the rise of video games over recent decades there have been major debates on whether these video games are influencing teenagers to commit crimes or whether they are just a harmless way of socializing and expressing anger in a controlled way. 

Researchers such as Kristin Kalning a games editor for msnbc claims that research has found that these video games are affecting the way in which teenagers or young adults act.  In recent research study, adolescents played two different types of video games (right) showed increased activity in the amygdala, which is involved in emotional arousal. Vince Matthew's the principal investigator on the study hesitates to jump to conclusions that after playing the call of duty kids will go on a killing rampage but warns parents that they should look more closely at the types of games there kids are playing. 

Matthew's and his colleagues chose two action games to include in their research - one violent the other not. The first game was the high octane but non violent racing game 'Need for Speed:Underground'. The other was the ultra-violent first-person shooter 'Medal of Honor : Frontline'. The team divided a group of 44 adolescents in two groups, and randomly assigned the kids to play one of the two games. Immediately after the play sessions, the children were given MRIs of their brains. 

The scans showed a negative effect on the brains of the teens who played 'Medal of Honor' for 30 minutes. The same effect was not present in the kids who played 'Need for Speed.' The only difference? violent content. What's not clear is whether the activity picked up by the MRIs indicates a lingering - or worse, permanent - effect on the kids' brains.

And it is also not known what effect longer play times might have. The scope of this study was 30 minutes of play, and one brain scan per kid, although further research is in the works.