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Does this explain hereditary criminals?
Revenge Is Indeed Sweet, Study Finds
Dirty Harry had it right: Brain scans show revenge really might make your day. Planning revenge sparks enough satisfaction to motivate getting even and the amount of satisfaction actually predicts who will go to greater lengths to do so, report Swiss researchers who monitored people's brain activity during an elaborate game of double-cross.
That may not sound too surprising. Just consider the old saying, "Revenge is sweet."
But beyond helping to unravel how the brain makes social and moral decisions, the study illustrates growing interest in the interaction between emotion and cognition
which in turn influences other fields such as how to better model the economy.
The new study chips "yet another sliver from the rational model of economic man," said Stanford University psychologist Brian Knutson, who reviewed the Swiss research. "Instead of cold, calculated reason, it is passion that may plant the seeds of revenge," he said.
People often are eager to punish wrongdoers even if the revenge brings them no personal gain or actually costs them something. From a practical standpoint, that may seem irrational.
In research reported in Friday's edition of the journal Science, University of Zurich scientists used PET scans to monitor the brain activity of game players to determine what motivates that type of revenge.
Two players could either trust and cooperate with each other so they both earned money. Or one could double-cross the other and keep an unfair share. Sometimes the double-cross was deliberate; other times, rules of the game dictated it. The victim could retaliate by fining the double-crosser different amounts, but sometimes had to spend his own money to impose that fine.
All 14 players chose revenge whenever the double-cross was deliberate and the retaliation free. Only three retaliated when the double-cross wasn't deliberate. Twelve of 14 players punished a deliberate double-cross even if it cost them additional money.
The PET scans showed a brain region known to be important for enjoyment and satisfaction the dorsal striatum became active in those players who decided to retaliate. It wasn't an afterglow from revenge, but satisfaction from anticipating it.
When the retaliation cost them money, a second brain region that helps weigh costs and benefits got involved, too, but the striatum remained key. The level of activity actually predicted which players would spend more money to get revenge.
"Their behavior does not reflect blind revenge that follows from overwhelming emotions," cautioned study co-author Ernst Fehr, director of the University of Zurich's economic research institute. "They reduce punishment if it is costly for them in the same way as they reduce buying goods if the goods become more expensive."
Moreover, that same satisfaction-causing brain circuitry seems to be involved in the evolution of human cooperation, providing incentive to get along with strangers in setting social norms, the researchers write in Science. Punishing violators of those norms even if you personally don't stand to gain may be the flip side.
The study involved only men, and more work is needed to see if women and people of varying social and income groups react similarly, Stanford's Knutson said.
But the research is important as scientists try to dissect how emotion interacts with analytical decision-making, he stressed.
"For a long time, sociologists and economists have not paid a lot of attention to people's feelings, especially before an event," Knutson explained. "It's almost like your mind imagines the outcome before it happens. That's a lot of what motivates behavior."
Dirty Harry had it right: Brain scans show revenge really might make your day. Planning revenge sparks enough satisfaction to motivate getting even and the amount of satisfaction actually predicts who will go to greater lengths to do so, report Swiss researchers who monitored people's brain activity during an elaborate game of double-cross.
That may not sound too surprising. Just consider the old saying, "Revenge is sweet."
But beyond helping to unravel how the brain makes social and moral decisions, the study illustrates growing interest in the interaction between emotion and cognition
which in turn influences other fields such as how to better model the economy.
The new study chips "yet another sliver from the rational model of economic man," said Stanford University psychologist Brian Knutson, who reviewed the Swiss research. "Instead of cold, calculated reason, it is passion that may plant the seeds of revenge," he said.
People often are eager to punish wrongdoers even if the revenge brings them no personal gain or actually costs them something. From a practical standpoint, that may seem irrational.
In research reported in Friday's edition of the journal Science, University of Zurich scientists used PET scans to monitor the brain activity of game players to determine what motivates that type of revenge.
Two players could either trust and cooperate with each other so they both earned money. Or one could double-cross the other and keep an unfair share. Sometimes the double-cross was deliberate; other times, rules of the game dictated it. The victim could retaliate by fining the double-crosser different amounts, but sometimes had to spend his own money to impose that fine.
All 14 players chose revenge whenever the double-cross was deliberate and the retaliation free. Only three retaliated when the double-cross wasn't deliberate. Twelve of 14 players punished a deliberate double-cross even if it cost them additional money.
The PET scans showed a brain region known to be important for enjoyment and satisfaction the dorsal striatum became active in those players who decided to retaliate. It wasn't an afterglow from revenge, but satisfaction from anticipating it.
When the retaliation cost them money, a second brain region that helps weigh costs and benefits got involved, too, but the striatum remained key. The level of activity actually predicted which players would spend more money to get revenge.
"Their behavior does not reflect blind revenge that follows from overwhelming emotions," cautioned study co-author Ernst Fehr, director of the University of Zurich's economic research institute. "They reduce punishment if it is costly for them in the same way as they reduce buying goods if the goods become more expensive."
Moreover, that same satisfaction-causing brain circuitry seems to be involved in the evolution of human cooperation, providing incentive to get along with strangers in setting social norms, the researchers write in Science. Punishing violators of those norms even if you personally don't stand to gain may be the flip side.
The study involved only men, and more work is needed to see if women and people of varying social and income groups react similarly, Stanford's Knutson said.
But the research is important as scientists try to dissect how emotion interacts with analytical decision-making, he stressed.
"For a long time, sociologists and economists have not paid a lot of attention to people's feelings, especially before an event," Knutson explained. "It's almost like your mind imagines the outcome before it happens. That's a lot of what motivates behavior."
no subject
Simply because i believe in society and that if people don't learn not to do things right now they will continue to do them. i view my perspective as being more long term.
kinda like spiderman not stopping the criminal that kills his uncle.
Course I do have complex on that. But i do believe in the dark and that people learn more sometimes from pain. it is the duality of man I suppose. So sometimes I hurt others and suffer for it because I care... twisted!
but sometimes we are just little children enjoying how pleasurable it is to bite another without realizing the pain we cause until we are bitten back. it is difficult for the parent to bite the child but is a necessary portion of their development.
no subject
I think this is where I might fall, at least in a game. The hard thing in real life is, did they intend the double-cross? Could they reason it out? I, too, sometimes wonder if I'm meant to be "spiderman" in this instance. Like with kids--learn the lesson now, later may be fatal.
Sort of like deciding that an Ex whose name I won't mention didn't mean to be attracted to every woman who walked by--he had just been programmed, for some reason, to assume every woman's friendship had sexual overtones. I couldn't punish him for that, because he didn't "get" it--but I could dump him. I gave him a *lot* of time to work through it, and he didn't--it wasn't important enough to him. Has he worked through this for himself and his second wife? No idea--but maybe--I think she'd cut off his you-know-whats if she caught him at it.... %^)
It would have to be a very serious almost "life or death" thingie for me to double-cross without being double-crossed first. I had trouble when I was doing D&D--I discovered I couldn't play the bad guy, even with a curse involved. Apparently it's not my nature!