Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China; College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China.
Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China.
Neurosci Biobehav Rev. 2022 Oct;141:104851. doi: 10.1016/j.neubiorev.2022.104851. Epub 2022 Sep 1.
The relationship between intertemporal and risky decision-making has received considerable attention in decision research. Single-process theories suggest that choices involving delay and risk are simply two manifestations of the same psychological mechanism, which implies similar patterns of neural activation. Conversely, the dual-system theory suggests that delayed and risky choices are two contrasting types of processes, which implies distinct brain networks. How these two types of choices relate to each other remains unclear. The current study addressed this issue by performing a meta-analysis of 28 intertemporal decision-making studies (862 subjects) and 51 risky decision-making studies (1539 subjects). We found no common area activated in the conjunction analysis of the delayed and risky rewards. Based on the contrast analysis, delayed rewards were associated with stronger activation in the left dorsal insula, while risky rewards were associated with activation in the bilateral ventral striatum and the right anterior insula. The results align with the dual-system theory with separate neural networks for delayed and risky rewards.
跨期和风险决策之间的关系在决策研究中受到了相当多的关注。单过程理论认为，涉及延迟和风险的选择只是同一心理机制的两种表现形式，这意味着类似的神经激活模式。相反，双系统理论认为，延迟和风险选择是两种截然不同的过程类型，这意味着不同的大脑网络。这两种类型的选择如何相互关联尚不清楚。本研究通过对 28 项跨期决策研究（862 名被试）和 51 项风险决策研究（1539 名被试）进行元分析来解决这个问题。我们在延迟和风险奖励的联合分析中没有发现共同激活的区域。基于对比分析，延迟奖励与左背侧脑岛的更强激活相关，而风险奖励与双侧腹侧纹状体和右前脑岛的激活相关。研究结果与双系统理论一致，即延迟和风险奖励有独立的神经网络。
