剪刀石头布竞争决策的神经解码。

IF 3.1
Denise Moerel, Tijl Grootswagers, Jessica L L Chin, Francesca Ciardo, Patti Nijhuis, Genevieve L Quek, Sophie Smit, Manuel Varlet
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引用次数: 0

摘要

社会互动是日常生活的基础,然而社会神经科学研究经常孤立地研究个体的大脑。超扫描,同时记录来自多个参与者的神经数据,通过检查多个大脑相互作用的过程,实现对社会过程的实时调查。先前的超扫描研究主要集中在合作任务上,很少有研究考察竞争环境。在这里,我们获得了62名参与者(31对)的脑电图(EEG)超扫描数据,他们玩了电脑版的石头剪刀布游戏,这是研究竞争决策的经典范例。虽然最佳策略是不可预测,因此随机行动,但参与者表现出行为偏差,偏离了这一理想。通过使用多元解码方法去测量两名玩家在互动过程中的神经表征,我们发现了参与者在游戏过程中所做出的决策信息,并揭示了某些策略。值得注意的是,失败者唯一地代表了先前试验的信息,这表明这可能会损害最佳表现。这些结果揭示了竞争性决策是如何受到认知偏差和先前结果的影响,突出了在战略环境中实现随机性的困难。这项工作促进了我们对竞争互动中的决策和认知动力学的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Neural decoding of competitive decision-making in Rock-Paper-Scissors.

Social interactions are fundamental to daily life, yet social neuroscience research has often studied individuals' brains in isolation. Hyperscanning, the simultaneous recording of neural data from multiple participants, enables real-time investigation of social processes by examining multiple brains while they interact. Previous hyperscanning research has largely focused on cooperative tasks, with fewer studies examining competitive contexts. Here, we obtained electroencephalography (EEG) hyperscanning data from 62 participants (31 pairs) who played a computerised version of the Rock-Paper-Scissors game, a classic paradigm for studying competitive decision-making. Although the optimal strategy is to be unpredictable and thus act randomly, participants exhibited behavioural biases, deviating from this ideal. Using multivariate decoding methods to measure neural representations within the two players' brains in interaction, we found information about decisions made by participants during gameplay, revealing certain strategies. Notably, losers uniquely represented information about prior trials, suggesting this may impair optimal performance. These results reveal how competitive decision-making is shaped by cognitive biases and previous outcomes, highlighting the difficulty of achieving randomness in strategic contexts. This work advances our understanding of decision-making and cognitive dynamics in competitive interactions.

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