Many studies have linked violence in TV shows and video games to violent behavior.
Prosecutors claim Spector has a pattern of violent behavior that is exacerbated when he drinks.
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The conduct of soldiers in war is made up of violent behavior that is criminal behavior outside of war.
What are the practical implications of all this evidence for the physical, genetic and environmental roots of violent behavior?
American Psychiatric Association President Dr. Rodrigo Munoz said there is no specific link between these drugs and violent behavior.
"It would appear that (the girl) does not have those risk factors identified for violent behavior, " the therapist wrote.
That includes one of his recommendations that call for studies into the links between violent video games and violent behavior.
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Sheen has a long history as a problem child and I am not defending either his self-destructive or violent behavior.
He exhibited "self-destructive, aggressive and violent behavior" and suffered extreme depression, withdrawing from his family and children, court documents said.
The worldwide poll revealed that 83 percent of network managers found abusive or violent behavior by users against their computer systems.
The individual who notices or recognizes an event that falls along a continuum of behaviors that leads to abusive or violent behavior.
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The drug's label cautions about insomnia and nightmares, but Pfizer says there's no evidence of a link between the drug and violent behavior.
"We're seeing extreme agitation, hallucinations that are very vivid, paranoia and some really violent behavior, so it's a real crisis for us, " Smith said.
It was fought largely by teenagers who were forced to kill, given addictive drugs to provoke violent behavior, and often instructed to rape and plunder.
Damage or abnormalities in the frontal lobe -- a brain area that regulates movement, inhibition, emotions and general behaviors -- has been linked to violent behavior.
According to research from the Society for Neuroscience, a confluence of disruptions and dysfunctions occur in the brains of people who exhibit anti-social and violent behavior.
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The main character in the film suffers from bipolar disorder, a condition for which there is a risk of violent behavior if symptoms become severe and go untreated.
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If delusions can contribute to violent behavior, what about flashbacks?
Genetics and environment may work together to encourage violent behavior.
But despite the violent behavior witnessed from V1647 and the surrounding disk, the star appears to have been relatively stable since the researchers began studying it in 2004.
The violent behavior leaves caregivers conflicted about their own safety.
Can we even assess the risk of violent behavior?
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"There is no evidence, no notes that would explain his very bizarre and violent behavior, " Amormino said, adding there was no evidence of a sexual assault and the woman was found fully clothed.
" The American Medical Association's guide for physicians says studies show "a clear link between brief exposure to violence on TV or movies and increases in aggressive and even physically violent behavior in young persons.
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Medvedev, who was called the only world leader who understood the internet by Wikipedia founder Jimmy Wales last week, is not interested in censoring the internet, but recognizes a need to police violent behavior on line.
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On Sept. 3 a musician named Carter Albrecht, who was a member of the folk-rock group Edie Brickell and the New Bohemians, was shot to death in Dallas after a night of strange and uncharacteristically violent behavior.
Blackwater has had to fire 122 guards - one-seventh of the personnel it has in Iraq - over the past three years for problems ranging from misuse of weapons, alcohol and drug violations, inappropriate conduct, and violent behavior, the committee report said.
Loitering, cracked windshields and broken taillights at times overlooked by a Detroit police force often overwhelmed with assaults, robberies and carjackings are being targeted along with other minor violations to stop more violent behavior at what some consider its source.
While she knows of no research examining the long-term impact of reality TV, a several decades-long study shows people who watched aggressive and violent behavior on TV as kids were more likely to be aggressive, hit their spouses and engage in other inappropriate behavior later in life.
Studies have shown that brain injury increases the risk of violent and aggressive behavior.
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