How Northeastern University Scientists Measure Jealousy In A Lab24:30

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David DeSteno, director of the social emotions lab at Northeastern University, demonstrates one of his experiments designed to isolate and quantify feelings of jealousy in a laboratory setting.

DeSteno sets up a budding love triangle between three human subjects — one is unwitting, the other two are in on it. The unaware participant is then rejected by the others. Things get really interesting when DeSteno offers the jilted party a chance to exact revenge.

The experiment reveals surprising things about what makes us jealous and why. It also answers the question of who gets more jealous: men or women?


  • David DeSteno, associate professor of psychology and director of the Social Emotions Lab, Northeastern University; author, "Out of Character"

This segment aired on July 4, 2012.