Childhood TV addicts more likely to commit crime: study

Children who watch excessive amounts of television are more likely to have criminal convictions and show aggressive personality traits as adults, a New Zealand study has found.

The University of Otago study tracked the viewing habits of about 1,000 children born in the early 1970s from when they were aged five to 15, then followed up when the subjects were 26 years old to assess potential impacts.

The research, published in the US journal "Pediatrics" this week, found a strong correlation between childhood exposure to television and anti-social behaviour in young adults.

"The risk of having a criminal conviction by early adulthood increased by about 30 per cent with every hour that children spent watching television on an average weeknight," co-author Bob Hancox said.

The study also found excessive TV viewing was linked to aggressive personality traits and an increased tendency to experience negative emotions.

It said the links remained statistically significant even when issues such as intelligence, social status and parental control were factored in.

"While we're not saying that television causes all anti-social behaviour, our findings do suggest that reducing television viewing could go some way towards reducing rates of anti-social behaviour in society," Hancox said.

He said the findings supported the American Academy of Pediatrics' recommendation that children should watch no more than one to two hours of quality television programming a day.

The study said it was possible that children learned anti-social behaviour by watching it on TV, leading to emotional desensitisation and the development of aggressive behaviour.

But it said the content of what children were viewing was not the only factor, highlighting the social isolation experienced by those who spent hours watching the box.

"It is plausible that excessive television viewing contributes to anti-social behaviour in ways unrelated to violent content," it said.

"These mechanisms could include reduced social interaction with peers and parents, poorer educational achievement, and increased risk of unemployment."

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