Real and hypothetical monetary rewards modulate risk taking in the brain.
Real and hypothetical monetary rewards modulate risk taking in the brain.
复制标题
真实和假设的金钱奖励调节大脑的冒险行为
DOI：
10.1038/srep29520
复制
发表时间：
2016-07-07
影响因子：
4.6
通讯作者：
Rao H
中科院分区：
文献类型：
--
作者：
Xu S;Pan Y;Wang Y;Spaeth AM;Qu Z;Rao H
真实的和假设的货币报酬都被广泛地用作风险承担和决策研究的衡量标准。然而，真实的和假设的货币奖励是否以同样的方式调节风险承担和决策仍然存在争议。在这项研究中，我们使用事件相关电位（ERP）与气球模拟风险任务（BART）范式，以检查的影响，真实的和假设的金钱奖励的风险承担在大脑中。行为数据显示，减少风险承担负反馈（金钱损失）后，在湾区捷运与真实的奖励相比，那些与假设的奖励，这表明增加损失厌恶与真实的金钱奖励。与假设性奖励相比，在真实的奖励条件下，ERP数据显示了更大的反馈相关负性（FRN），这可能反映了真实的金钱损失后更大的预测错误或后悔情绪。这些发现表明，真实的与假设的金钱奖励对冒险行为和大脑活动的影响不同，这表明在从对预期行为的假设研究中得出关于真实的选择的结论时要谨慎，特别是当使用大奖励时。研究结果对风险承担和决策研究中真实的和假设的货币奖励的未来效用有影响。
Both real and hypothetical monetary rewards are widely used as reinforcers in risk taking and decision making studies. However, whether real and hypothetical monetary rewards modulate risk taking and decision making in the same manner remains controversial. In this study, we used event-related potentials (ERP) with a balloon analogue risk task (BART) paradigm to examine the effects of real and hypothetical monetary rewards on risk taking in the brain. Behavioral data showed reduced risk taking after negative feedback (money loss) during the BART with real rewards compared to those with hypothetical rewards, suggesting increased loss aversion with real monetary rewards. The ERP data demonstrated a larger feedback-related negativity (FRN) in response to money loss during risk taking with real rewards compared to those with hypothetical rewards, which may reflect greater prediction error or regret emotion after real monetary losses. These findings demonstrate differential effects of real versus hypothetical monetary rewards on risk taking behavior and brain activity, suggesting a caution when drawing conclusions about real choices from hypothetical studies of intended behavior, especially when large rewards are used. The results have implications for future utility of real and hypothetical monetary rewards in studies of risk taking and decision making.