Executive control by fronto-parietal activity explains counterintuitive decision behavior in complex value-based decision-making
Executive control by fronto-parietal activity explains counterintuitive decision behavior in complex value-based decision-making
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DOI：
10.1016/j.neuroimage.2022.118892
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发表时间：
2022-01-15
期刊：
影响因子：
5.7
通讯作者：
Jimura，Koji
中科院分区：
文献类型：
--
作者：
Matsui，Teppei;Hattori，Yoshiki;Jimura，Koji
在真实的生活中，人类通过考虑多个独立的因素来做出决策，例如延迟和概率。认知心理学认为，在面对如此复杂的任务条件时，认知控制机制起着关键作用。然而，在基于价值的决策中，当任务条件复杂时，认知控制机制在多大程度上变得必不可少仍然不清楚。在这项研究中，我们研究了决策行为和潜在的神经机制，使用多因素赌博任务，参与者同时考虑概率和延迟。在多因素任务中，决策行为受到概率和延迟的共同调节。概率的行为影响比延迟更强，这与之前的研究一致。此外，在招募额顶叶激活的条件下，尽管概率不确定性较低，但反应时间却矛盾地延长。值得注意的是，这样的反应时间延长没有发生在控制任务涉及单因素。对大脑激活的荟萃分析表明，反应时的反常增加可能与策略转换有关。与这种解释一致，行为数据的逻辑回归分析表明存在多种决策策略。综上所述，我们发现，一种新的复杂的基于价值的决策任务导致额顶叶皮层显著激活。此外，我们建议，这些激活可以解释为招聘的认知控制系统在复杂的情况下。
In real life, humans make decisions by taking into account multiple independent factors, such as delay and probability. Cognitive psychology suggests that cognitive control mechanisms play a key role when facing such complex task conditions. However, in value-based decision-making, it still remains unclear to what extent cognitive control mechanisms become essential when the task condition is complex. In this study, we investigated decision-making behaviors and underlying neural mechanisms using a multifactor gambling task where participants simultaneously considered probability and delay. Decision-making behavior in the multifactor task was modulated by both probability and delay. The behavioral effect of probability was stronger than delay, consistent with previous studies. Furthermore, in a subset of conditions that recruited fronto-parietal activations, reaction times were paradoxically elongated despite lower probabilistic uncertainty. Notably, such a reaction time elongation did not occur in control tasks involving single factors. Meta-analysis of brain activations suggested an interpretation that the paradoxical increase of reaction time may be associated with strategy switching. Consistent with this interpretation, logistic regression analysis of the behavioral data suggested a presence of multiple decision strategies. Taken together, we found that a novel complex value-based decision-making task cause prominent activations in fronto-parietal cortex. Furthermore, we propose that these activations can be interpreted as recruitment of cognitive control system in complex situations.