Contagious nature of risk-taking behavior

According to computational modeling and fMRI scans of 24 people, humans are likely to shift their preference for taking risks toward the level of risk-seeking behavior observed in others, and this behavioral shift is mapped to the caudate nucleus and the dorsolateral prefrontal cortex, which are brain regions associated with risk assessment and learning about others’ risk attitudes, respectively, suggesting how risky behaviors influence others in scenarios such as economic boom-and-bust cycles. - See at PNAS.org

Article #16-00092: “Behavioral contagion during learning about another agent’s risk-preferences acts on the neural representation of decision-risk,” by Shinsuke Suzuki, Emily L. S. Jensen, Peter Bossaerts, and John P. O’Doherty.