Department for the Psychology of Human Movement and Sport, Friedrich Schiller University Jena, Jena, Germany.
Department of Psychology, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.
Sci Rep. 2021 Jun 4;11(1):11894. doi: 10.1038/s41598-021-91285-1.
Choosing among different options typically entails weighing their anticipated costs and benefits. Previous research has predominantly focused on situations, where the costs and benefits of choices are known before an action is effectuated. Yet many decisions in daily life are made on the fly, for instance, making a snack choice while walking through the grocery store. Notably, the costs of actions change dynamically while moving. Therefore, in this study we examined whether the concurrent action dynamics of gait form part of and affect value-based decisions. In three experiments, participants had to decide which lateral (left vs. right) target (associated with different rewards) they would go to, while they were already walking. Results showed that the target choice was biased by the alternating stepping behavior, even at the expense of receiving less reward. These findings provide evidence that whole-body action dynamics affect value-based decisions.
在不同的选择中进行取舍通常需要权衡其预期的成本和收益。之前的研究主要集中在行动实施之前就已经知道选择的成本和收益的情况下。然而，日常生活中的许多决策都是即兴做出的，例如，在杂货店散步时选择零食。值得注意的是，行动的成本在移动过程中会动态变化。因此，在这项研究中，我们研究了步态的并发动作动态是否构成并影响基于价值的决策。在三个实验中，参与者必须在已经行走的同时决定他们将走向哪个侧向（左侧与右侧）目标（与不同的奖励相关联）。结果表明，目标选择受到交替踏步行为的影响，即使这样做的代价是获得较少的奖励。这些发现为全身动作动态影响基于价值的决策提供了证据。
