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Tuesday, August 31, 2004

Vengeance is not just for the lord, says science

...which does not surprise me. Although, I must add that, in my observation and experience, life does manage to even the score in most cases. But sometimes, it could use a little help.

Brain Scans Reveal That Revenge Is Sweet
from Scientific American
In Dante's Inferno, the inner circle of hell was reserved for betrayers like Judas and Brutus. But new research indicates that punishing those who break social norms is not merely the province of poets. Scientists have uncovered evidence for an innate satisfaction in human beings for giving people their comeuppance. Dominique J.-F. de Quervain of the University of Zurich and his colleagues set up an experiment to study how a group of male participants responded to acts of selfishness.

As described in today's edition of Science, the researchers devised a game in which one player (A) offered money to an anonymous player (B), knowing that B would actually receive four times the specified amount. Player B then had to choose whether or not to share his windfall equally with player A. If player B was stingy, player A could penalize him.

The scientists tested different scenarios. In some instances A set a fine that B had to pay, but other times A knew his punishment would be merely symbolic and that B would lose no money. While player A was contemplating his revenge, a positron mission tomography (PET) scan determined what parts of his brain were active. The scans showed increased activity in the striatum, a region associated with the processing of rewards, but only when A knew he could hurt B financially. The implication was that real punishment feels good.

To explore the significance of this emotion, the researchers sometimes charged A for his revenge. They found that the level of striatum activity positively correlated with how much money a participant was willing to pay for the opportunity to retaliate. The anticipation of pleasure apparently affected a player's eagerness to punish. This sort of causal relationship may explain why people are willing to discipline a stranger even when there is no immediate gain in it for them. "Emotions play a proactive as well as reactive role," remarks Brian Knutson of Stanford University who penned an accompanying commentary. He notes that 'passionate' forces may need to be included in economic models because, as this research shows, people show systematic deviations from rationality."


// posted by Ellen @  22:36   //Permalink// 
Ellen says hey
Mainer, New Yawka, Beijinger, Californian, points between. News, views and ballyhoos that piqued my interest and caused me to sigh, cry, chuckle, groan or throw something.


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