Intolerance of Uncertainty and Decisions About Delayed, Probabilistic Rewards
Intolerance of Uncertainty and Decisions About Delayed, Probabilistic Rewards
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DOI：
10.1016/j.beth.2010.09.002
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发表时间：
2011-09-01
期刊：
影响因子：
3.7
通讯作者：
Hajcak, Greg
中科院分区：
文献类型：
--
作者：
Luhmann, Christian C.;Ishida, Kanako;Hajcak, Greg
担忧是对未来潜在威胁的夸大担忧，也是广泛性焦虑症的一个显著特征。以前的理论研究表明，担忧可能是不容忍不确定性(IU)的结果。目前的研究试图探索信息自由行的行为后果。具体地说，我们考察了信息技术与基于奖励的决策制定之间的关系。我们利用了一个简单的实验室赌博任务，参与者在每次试验开始时立即获得的小规模、低概率奖励和只有在一些可变延迟后才能获得的大额、高概率奖励之间进行选择。结果表明，对不确定性的不容忍程度越高，就越倾向于选择立即可用、但价值较低、可能性较小的回报。伊利诺伊大学还预测了决策者对结果的敏感性。我们讨论了认知和情感机制，这些机制可能是观察到的决策行为的基础，以及对焦虑症的影响。
Worry is the inflated concern about potential future threats and is a hallmark feature of generalized anxiety disorder. Previous theoretical work has suggested that worry may be a consequence of intolerance of uncertainty (IU). The current study seeks to explore the behavioral consequences of IU. Specifically, we examine how IU might be associated with aspects of reward-based decision making. We utilized a simple laboratory gambling task in which participants chose between small, low-probability rewards available immediately at the beginning of each trial and large, high-probability rewards only available after some variable delay. Results demonstrate that higher levels of intolerance of uncertainty were associated with a tendency to select the immediately available, but less valuable and less probable rewards. IU also predicted decision-makers' sensitivity to outcomes. We discuss the cognitive and affective mechanisms that are likely to underlie the observed decision-making behavior and the implications for anxiety disorders.