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This is Scientific American's 60-second science. I'm Christopher in Taliatta.

So here's the gamble. 20 bucks guaranteed, or a 50-50 chance of winning 60 bucks. Which would you

choose? The answer might actually be evident in a brain scan, according to a study in which

researchers posed actual terms like that to 108 young adults,

and the stakes were real.

The initial choice and then the outcome, if they picked the bet,

determine how much they'd walk away with after the study.

The research is in the journal, Neuron.

It does work out in our favor that people are risk-averse because it means that on average

we're going to be paying people less than we would otherwise. Joe Cable, a psychologist and neuroscientist at the

University of Pennsylvania. After he and his team recorded the subject's appetite for risk,

they scan their brains using various techniques that visualize anatomy and real-time activity.

And they found that individuals who are willing to throw

the sure thing 20 bucks away for the chance of a higher payout were also more likely to have

larger amygdala's, that's a region associated with processing fear and weighing risk versus reward.

They also saw in the gambler's brains more synchronized activity between the amygdala

and another region called the medial prefrontal cortex. But there were fewer physical white matter

...