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By combining computational modeling of the data from the “Self” behavioral trials with the fMRI data, the researchers determined that a region of the brain called the caudate nucleus responds to the degree of risk in the gamble; for example, a riskier gamble resulted in a higher level of observed activity in the caudate nucleus, while a less risky gamble resulted in a lower level of activity. Additionally, the more likely the participants were to make a gamble, the more sensitively activity in the caudate nucleus responded to risk. “This showed that, in addition to the behavioral shift, the neural processing of risk in the caudate is also altered. Also, both the behavioral and neural responses to taking risks can be changed through passively observing the behavior of others,” Suzuki says.

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Neuroscience & Psychology
Is Risk-Taking Behavior Contagious? Why do we sometimes decide to take risks and other times choose to play it safe? In a new study, Caltech researchers explored the neural mechanisms of one possible explanation: a contagion effect. O’Doherty and his colleagues…
By combining computational modeling of the data from the “Self” behavioral trials with the fMRI data, the researchers determined that a region of the brain called the caudate nucleus responds to the degree of risk in the gamble; for example, a riskier gamble resulted in a higher level of observed activity in the caudate nucleus, while a less risky gamble resulted in a lower level of activity. Additionally, the more likely the participants were to make a gamble, the more sensitively activity in the caudate nucleus responded to risk. “This showed that, in addition to the behavioral shift, the neural processing of risk in the caudate is also altered. Also, both the behavioral and neural responses to taking risks can be changed through passively observing the behavior of others,” Suzuki says.

🆔@neurocognitionandlearning


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