Study Shows Seeing Smiles Can Lower Aggression

Source: Time, April 4, 2013 article
Study Shows Seeing Smile Can Lower Aggression
By Maia Szalavitz

A happy face can certainly lift spirits, but can it reduce rage?

Studies have documented that the physical act of smiling is a universal, and effective way to lift mood, if briefly. But in the latest research on the power of the smile, researchers led by Marcus Munafo of the University of Bristol in England found that even seeing smiles on the faces of others can have a profound effect on a person’s tendency toward violence or aggression— that is, as long as that person recognizes the smile as one of happiness, and not as a sneer.

Munafo and his colleagues conducted a series of experiments involving normal adults as well as highly aggressive teens who had been referred to a youth program, either by educational authorities or the courts. About 70% of the teens already had a criminal record….

The researchers focused on the 46 adolescents from the high risk youth program, ranging in age from 11 to 16. These teens completed the same testing, but both the youth and the staff reported on the teens’ levels of aggressive behavior before the testing started and for two weeks afterward. The teens who had been trained to interpret ambiguous facial expressions more positively were significantly less aggressive two weeks later, as rated by both the staff (who did not know which kids were in the intervention group) and by themselves.

“The results of our experiments strongly suggest that biases in the perception of emotional facial expressions play a causal role in subjective anger and aggressive behavior,” the authors conclude.

That doesn’t mean that smiles alone are the answer to violence among adolescents — previous research in which antisocial youth were trained to better recognize emotions, for example, did not have any effect on their level of aggressive behavior. But this earlier study focused on improving teens’ perception of clear facial signals, not ambiguous ones. Since ambiguous signals are more prone to misinterpretation, it may be that violent behavior in some youth is perpetuated by their constant misintepretation of angry expressions where they don’t exist, that push them to combative responses. The findings suggest that helping young people, particularly those who are prone to violence, to learn to give others the benefit of the doubt when they see what they think is a threatening face could help end the vicious cycle of violence.

Read the entire article here.

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