Study: Potential for Criminal Behavior Evident at Age 3

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kidChildren who don’t show normal fear responses to loud, unpleasant sounds at the age of 3 may be more likely to commit crimes as adults, according to a new study.

Yu Gao and colleagues in the United States and the United Kingdom compared results from a study of almost 1,800 children born in 1969 and 1970 on the Indian Ocean island of Mauritius to criminal records of group members 20 years later.

At age 3, the children were tested to gauge their level of “fear conditioning,” or fear of consequences. The idea is that children who associate unpleasant sounds or other unpleasant experiences with fear will be less likely to commit antisocial acts because they will link such experiences with punishments for those acts.

Researchers tested the 3-year-olds’ responses to unpleasant noises using a lie detector. When they looked at any criminal records among the participants 20 years later, 137 of them (131 male, 6 female) had at least one criminal conviction.

Compared to almost 300 participants with no criminal records, those 137 participants had a much lower response to the noises at the age of 3.

The findings could link previous studies suggesting that psychopaths and children with behavioral problems at the age of 11 have similar abnormalities in a part of the brain called the amygdala. That structure is largely responsible for directing fear of consequences.

Because this study controlled for social factors such as parents’ education, number of parents in the home, socioeconomic status, and family size, biology is the likely reason for the “blunted emotions” registered in some of the 3 year olds, study co-author, Dr. Adrian Raine of the University of York in England, told Reuters Health in a telephone interview.

Still, the researchers warn against reading too much into their findings. The results do not offer a biological way to identify future criminals.

“Crime is clearly a complex construct involving multiple interactions between genetic, brain, family and social influences,” they write.

But, they conclude, the findings provide some support for the idea that the potential for antisocial and criminal behavior may be hard-wired in young brains – which means that if the results hold, “efforts to prevent and treat this worldwide behavior problem will increasingly rely on early health interventions.”

{Reuters Health/American Journal of Psychiatry/Matzav.com Newscenter}


3 COMMENTS

  1. this is a little ridiculous! what are people gonna do? arrest these kids when they’re 3 years old and they haven’t commited any crime?! thats democracy for you!! its an interesting idea but it still doesn’t help the situation.

  2. Going one step further; a child who lives in a house with alot of noise,yelling and screaming isn’t going to react to noise because he is already conditioned to it not to react. So a child not brought up in a calm environment may have a predisposition to criminal acts( or in our case going against Torah).

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