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In order to play and win, the player has to be the aggressor. Rather than watching violence, as he might do on television, he's committing the violent acts. Most researchers acknowledge that this kind of active participation affects a person's thought patterns, at least in the short term.

Another factor that concerns both researchers and parents is that violence in video games is often rewarded rather than punished.

If played frequently enough, games like this can skew a young person's perception of violence and its consequences.

In 2002, researchers Anderson and Bushman developed the General Aggression Model (GAM). Often considered one of the greatest contributions to the study of violence and video games, the GAM helps explain the complex relationship between violent video games and aggressive gamers.

The GAM takes some (though not all) of the heat off video games by acknowledging that a gamer's personality plays into how he is affected by violence. Anderson and Bushman refer to three internal facets - thoughts, feelings, and physiological responses - that determine how a person interprets aggressive behavior. Some people's responses are naturally more hostile, making them predisposed to respond more aggressively to violent video games.

Short-term effects were easily identified in the GAM; the most prominent being that violent games change the way gamers interpret and respond to aggressive acts. Even those who aren't predisposed to aggression respond with increased hostility after playing a violent video game. The game becomes what's called a "situational variable" which changes the perception of and reaction to aggressive behavior.

No long-term studies have been conducted to date, so there are only hypotheses.

Anderson and Bushman theorized that excessive exposure to violent video games causes the formation of aggressive beliefs and attitudes, while also desensitizing gamers to violent behaviors.

Parents would be wise to monitor the amount of time their kids spend gaming and watch closely for any negative effects.

“Based on our results, I think parents should be aware of the relationship between violent video-game playing and brain function.”

he scans showed a negative effect on the brains of the teens who played “Medal of Honor” for 30 minutes. That same effect was not present in the kids who played “Need for Speed.”

And it’s 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

But what about violent TV shows? Or violent films? Has anyone ever done a brain scan of kids that have just watched a violent movie?

Kids in his study experienced increased emotional arousal when watching short clips from the boxing movie “Rocky IV.”

Larry Ley, the director and coordinator of research for the Center for Successful Parenting, which funded Mathews’ study, says the purpose of the research was to help parents make informed decisions. “There’s enough data that clearly indicates that [game violence] is a problem,” he says. “And it’s not just a problem for kids with behavior disorders.”

But not everyone is convinced that this latest research adds much to the debate – particularly the game development community. One such naysayer is Doug Lowenstein, president of the Entertainment Software Association.

“We've seen other studies in this field that have made dramatic claims but turn out to be less persuasive when objectively analyzed.”

And they’ve got plenty of answers at the ready for the critics who want to lay school shootings or teen aggression at the feet of the game industry. Several studies cited by the ESA point to games’ potential benefits for developing decision-making skills or bettering reaction times. Ley, however, argues such studies aren’t credible because they were produced by “hired guns” funded by the multi-billion-dollar game industry.

Increasingly parents are more accepting of video game violence, chalking it up to being a part of growing up. “I was dead-set against violent video games,” says Kelley Windfield, a Sammamish, Wa.-based mother of two. “But my husband told me I had to start loosening up.” Laura Best, a mother of three from Clovis, Calif., says she looks for age-appropriate games for her 14 year-old son, Kyle. And although he doesn’t play a lot of games, he does tend to gravitate towards shooters like “Medal of Honor.”  But she isn’t concerned that Kyle will become aggressive as a result. “That’s like saying a soccer game or a football game will make a kid more aggressive,” she says. “It’s about self-control, and you’ve got to learn it.”

“Let’s quit using various Xboxes as babysitters instead of doing healthful activities,” says Ley, citing the growing epidemic of childhood obesity in the United States. And who, really, can argue with that?

significant bearing on India’s economic policy

economy would be moving towards a single goods and service tax by doing away with differences between rates of service taxes

release certain chemicals in the brain, such as what happens during exercise.

Claims as to the location of Osama bin Laden have been made since December 2001, although none have been definitively proven and some have placed Osama in different locations during overlapping time periods.

On October 18th 2010, Osama bin Laden is alive and well and living comfortably in a house in the north-west of Pakistan protected by local people and elements of the country's intelligence services, according to a senior Nato official

it is interesting to watch those who appear to 'have it all' put on weight and see how long it takes for them to lose it.

After a celebrity gives birth, the paparazzi usually follows her everywhere ready to snap her, so the whole world (which appears to be waiting with baited breath) can see how long it takes for her to lose her baby weight

Personal chefs, trainers, assistants, plastic surgery, beauty treatments, you name it; they have everything they need at their disposal to whip them into their desired size and shape

The resulting image of physical perfection that celebrities project is unobtainable for the majority of people

Dieting is one of the contributory factors in the onset of eating disorders.

Low self-esteem and eating disorders are the side effects from the media’s portrayal of artificial beauty

as of 2004, 8 million people—7 million of them women—had an eating disorder (anorexia nervosa, bulimia nervosa, etc.).

According to the American Psychiatric Assn.’s Diagnostic & Statistic Manual of Mental Disorders, people who suffer from anorexia typically have an underlying personality disorder and seek more control over their environment.

indicate that discipline and control, rather than thinness, were their true goals

66% of Americans do not even come close to conforming to that supposed ideal. Meanwhile, less than 3% of the U.S. population suffers from an eating disorder

We know Barbie is anatomically impossible.

magazine covers featuring celebrities have been airbrushed,

blaming the media for eating disorders is a lot like laying the blame for underage smoking on TV characters

"over three-quarters of the female characters in TV situation comedies are underweight, and only one in 20 are above average in size.

Heavier actresses tend to receive negative comments from male characters about their bodies

80% of these negative comments are followed by canned audience laughter."

Of course, all gamers are not addicts – many teens can play video games a few hours a week, successfully balancing school activities, grades, friends, and family obligations. But for some, gaming has become an uncontrollable compulsion. Studies estimate that 10 percent to 15 percent of gamers exhibit signs that meet the World Health Organization’s criteria for addiction. Just like gambling and other compulsive behaviors, teens can become so enthralled in the fantasy world of gaming that they neglect their family, friends, work, and school.