This paper explores people’s behavior when they are facing financial risks. Through the setting of an economics experiment, people’s willingness to bear financial risks and their tendency to impose risks on others are investigated. The experiment result shows that most people are risk-neutral or risk-averse when making decision under financial environment, and their tendency to impose risks on ...

Pharmacological studies point to a role of the neurotransmitter serotonin (5-HT) in regulating the preference for risky decisions, yet the functional contribution of specific 5-HT receptors remains to be clarified. We used pharmacological fMRI to investigate the role of the 5-HT2A receptors in processing negative outcomes and regulating risk-averse behavior. During fMRI, twenty healthy voluntee...

this paper explores people’s behavior when they are facing financial risks. through the setting of an economics experiment, people’s willingness to bear financial risks and their tendency to impose risks on others are investigated. the experiment result shows that most people are risk-neutral or risk-averse when making decision under financial environment, and their tendency to impose risks on ...

Animals and humans often have to choose between options with reward distributions that are initially unknown and can only be learned through experience. Recent experimental and theoretical work has demonstrated that such decision processes can be modeled using computational models of reinforcement learning (Daw et al, 2006; Erev & Barron, 2005; Sutton & Barto, 1998). In these models, agents use...