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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >The impact of the certainty context on the process of choice.
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The impact of the certainty context on the process of choice.

机译:确定性上下文对选择过程的影响。

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摘要

In this study we examine how the introduction of a reference lottery with nonrandom outcomes alters the way in which choices among pairs of lotteries are made, even if it does not alter the choices. We use different domains (some of the lotteries produce gains, other losses) and different contexts (one member of the pair, the reference lottery, may be either risky or certain). In our experiment, the change from gain to loss domain affects choices: subjects are risk averse in the gain domain, but not in the loss domain. On the contrary, the context effect of the certain lottery does not affect choices. However, the introduction of the certainty reference lottery affects two behavioral variables, response time and brain activation, in a dramatic way. This result suggests that the certainty lottery promotes a different process through which preferences are revealed, even if the differences among lotteries may not be large enough to induce different choices.
机译:在这项研究中,我们研究了具有非随机结果的参考彩票的引入如何改变在成对彩票中做出选择的方式,即使它不会改变选择。我们使用不同的域(某些彩票产生收益,其他损失)和不同的上下文(货币对中的一个成员,即参考彩票可能具有风险或确定性)。在我们的实验中,从收益域到损失域的变化会影响选择:受试者在收益域中是规避风险的,但在损失域中则是风险厌恶的。相反,某些彩票的情境效应不会影响选择。但是,确定性参考彩票的引入会以戏剧性的方式影响两个行为变量,即响应时间和大脑激活。该结果表明,确定性彩票促进了揭示偏好的不同过程,即使彩票之间的差异可能不足以引起不同的选择。

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