The Neurobiology of Trust and Social Decision-Making

There is accumulating evidence suggesting that emotions can have a strong impact on social decision-making. However, the neural mechanisms of emotional influences on choice are less well understood to date. This chapter integrates recent results from two independent but related research streams in social neuroeconomics and social neuroscience, which together identify the neural mechanisms involved in the influences of emotions on social choice. Specifically, research in social neuroeconomics has shown that social decisions, such as trust-taking, involve commonly ignored emotional considerations in addition to economic considerations related to payouts. These results are paralleled by recent findings in social neuroscience that underline the role of emotions in social interactions. Because anticipatory emotions associated with social approval and rejection can have important, but often ignored, influences on social choices the integration of emotions into theories of social decision-making is necessary.