Switzerland found a neuronal mechanism of revenge

31.08.2004

31.08.2004


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Swiss researchers from the University of Zurich with positron emission tomography (PET) found that revenge — really sweet feeling, reports Reuters.

At the moment of revenge offenders, subjects recorded the electrical activity in the pleasure center of the brain. The findings, published in the journal Science, according to experts, may shed light on the evolution of social norms and regulation of behavior in the human community.

Dominique de Quervain (Dominique de Quervain) and his colleagues have conducted surveillance of 15 students who thought they were participating in an economic experiment. Electrical activity of the brain detected by positron emission tomography (PET).

The subjects played the famous economic game in which both players' winnings depends on their mutual trust and honesty. They have to decide whether to share with a partner of their money. If both decide to share, the amount of money increases by four times, and both partners are winners. If one of them show altruism, but the other — no wins treacherous partner.

By this classic experiment Swiss scientists have made adding: they provided an opportunity to partner, who "left out in the cold," revenge. The player can buy for the money right away with a partner of his winnings.

When subjects decide to exercise their right to revenge, scanner showed an increase of the electrical activity of the brain in the occipital region, which is the center of pleasure. Subjects received a pleasure, despite the loss of profit, because they had to pay for his revenge in cash.

Psychologists believe that this psychophysiological mechanism to regulate social behavior of ancient people for thousands of years as they did without courts and claims the protection of honor and dignity. From the desire of people to do bad things neighbor protected the certainty of retaliation by the offended.

Battery News, 30.08.2004 18:02
Source: Mednovosti.ru

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