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Increased computer use by adolescents cause for concern (5/4/2011)

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Researchers at Queen's University have found a strong association between computer and Internet use in adolescents and engagement in multiple-risk behaviors (MRB), including illicit drug use, drunkenness and unprotected sex.

"This research is based on social cognitive theory, which suggests that seeing people engaged in a behavior is a way of learning that behavior," explains lead researcher Valerie Carson, a doctoral candidate in School of Kinesiology and Health Studies. "Since adolescents are exposed to considerable screen time-over 4.5 hours on average each day-they're constantly seeing images of behaviors they can then potentially adopt."

The researchers found that high computer use was associated with approximately 50 per cent increased engagement with a cluster of six MRB, including smoking, drunkenness, non-use of seatbelts, cannabis and illicit drug use, and unprotected sex. High television use was also associated with a modestly increased engagement in these MRB.

One explanation behind this finding is that a considerable amount of advertising that used to be shown on TV is now being shown on the Internet. In addition, computer usage by adolescents has increased considerably in recent years.

"TV and video games have more established protocols in terms of censorship, but Internet protocols aren't as established," says Ms Carson. "Parents can make use of programs that control access to the Internet, but adolescents in this age group are quite savvy about technology and the Internet. It's possible that these types of controls aren't effective in blocking all undesirable websites."

This research, recently published in the Journal of Preventative Medicine, suggests that future studies should examine the specific content adolescents are being exposed to in order to help strengthen current screen time guidelines for youth.

Note: This story has been adapted from a news release issued by the Queen's University

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