The Nike Ultimatum Graphic Duffel Bag keeps gear organized and secure with multiple pockets and specialized compartments. Multiple zip pockets for better. Nowak MA, Page KM, Sigmund K (2000) Fairness versus reason in the ultimatum game. Science 289(5485):1773–1775. Nowak MA, Tarnita CE, Antal T (2010).

1, Jonathan Downar 2,3 and P. Read Montague 1,4* • 1 Human Neuroimaging Laboratory, Virginia Tech Carilion Research Institute, Virginia Tech, Roanoke, VA, USA • 2 Neuropsychiatry Clinic, Toronto Western Hospital, Toronto, ON, Canada • 3 Centre for Addition and Mental Health, University of Toronto, Toronto, ON, Canada • 4 Department of Physics, Virginia Tech, Blacksburg, VA, USA Human decision-making is often conceptualized as a competition between cognitive and emotional processes in the brain. Deviations from rational processes are believed to derive from inclusion of emotional factors in decision-making. Here, we investigate whether experienced Buddhist meditators are better equipped to regulate emotional processes compared with controls during economic decision-making in the Ultimatum Game.

We show that meditators accept unfair offers on more than half of the trials, whereas controls only accept unfair offers on one-quarter of the trials. By applying fMRI we show that controls recruit the anterior insula during unfair offers. Such responses are powerful predictors of rejecting offers in social interaction.

By contrast, meditators display attenuated activity in high-level emotional representations of the anterior insula and increased activity in the low-level interoceptive representations of the posterior insula. In addition we show that a subset of control participants who play rationally (i.e., accepts >85% unfair offers) recruits the dorsolateral prefrontal cortex presumably reflecting increased cognitive demands, whereas rational meditators by contrast display elevated activity in the somatosensory cortex and posterior superior temporal cortex. In summary, when assessing unfairness in the Ultimatum Game, meditators activate a different network of brain areas compared with controls enabling them to uncouple negative emotional reactions from their behavior. These findings highlight the clinically and socially important possibility that sustained training in mindfulness meditation may impact distinct domains of human decision-making. Introduction In rational accounts of human behavior, if a person is offered the choice of gaining a reward versus gaining nothing, they should always choose the reward. While this is typically true in a non-social context, this account often breaks down during social interactions.

In the classic example of the Ultimatum Game, a “proposer” offers to split a sum of money with a “responder” in a two-person exchange. If the responder rejects the offer, both players get nothing – hence, according to rational choice theory, responders should accept all non-zero offers.

In reality, players are rarely so magnanimous. Herr der ringe schlacht um mittelerde 2 download vollversion free. Responders typically reject offers in which the proposer’s share exceeds 80% of the total, preferring to gain nothing rather than accept an inferior share of the winnings (; ). This sensitivity to fairness may be a uniquely human trait (). For example, chimpanzees play the Ultimatum Game according to the dictates of rational choice theory, and are content with all non-zero offers irrespective of fairness (). So why do human beings turn a perfectly good reward into a disappointment when others are getting more?

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One proposal is that the superficially “irrational” rejection of inferior shares is a costly but effective means of enforcing social norms (). Ultimately, the costs of giving up inferior shares are presumably outweighed by the long-term benefits of establishing a cooperative social environment (; ). Although this may be so, the strategy of measuring one’s own gains against others also has a downside. In wealthy societies, a comfortable income can become unsatisfactory if compared to an extravagant one: the millionaire envies the billionaire, and the billionaire envies still richer billionaires.