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首页> 外文期刊>The European Journal of Neuroscience >Neurophysiological correlates of collective perceptual decision-making
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Neurophysiological correlates of collective perceptual decision-making

机译：集体感知决策的神经生理学相关性

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Humans frequently perform tasks collaboratively in daily life. Collaborating with others may or may not result in higher task performance than if one were to complete the task alone (i.e., a collective benefit). A recent study on collective benefits in perceptual decision-making showed that dyad members with similar individual performances attain collective benefit. However, little is known about the physiological basis of these results. Here, we replicate this earlier work and also investigate the neurophysiological correlates of decision-making using EEG. In a two-interval forced-choice task, co-actors individually indicated presence of a target stimulus with a higher contrast and then indicated their confidence on a rating scale. Viewing the individual ratings, dyads made a joint decision. Replicating earlier work, we found a positive correlation between the similarity of individual performances and collective benefit. We analyzed event-related potentials (ERPs) in three phases (i.e., stimulus onset, response and feedback) using explorative cluster mass permutation tests. At stimulus onset, ERPs were significantly linearly related to our manipulation of contrast differences, validating our manipulation of task difficulty. For individual and joint responses, we found a significant centro-parietal error-related positivity for correct versus incorrect responses, which suggests that accuracy is already evaluated at the response level. At feedback presentation, we found a significant late positive fronto-central potential elicited by incorrect joint responses. In sum, these results demonstrate that response- and feedback-related components elicited by an error-monitoring system differentially integrate conflicting information exchanged during the joint decision-making process.
机译：人类经常在日常生活中协同地执行任务。与他人的合作可能会或可能不会导致更高的任务性能，而不是单独完成任务（即，集体利益）。最近在感知决策中的集体效益研究表明，具有类似个人表演的Dyad成员达到集体效益。但是，关于这些结果的生理基础知之甚少。在这里，我们复制了这个早期的工作，并研究了使用EEG决策的神经生理学相关性。在两个间隔的强制选择任务中，共同演员单独指出存在具有更高对比度的目标刺激，然后表示他们对评级规模的信心。观看个人评级，Dyads作了联合决定。复制前面的工作，我们发现个人表演的相似性与集体利益之间的正相关性。我们使用探索群体质量排列测试分析了三相（即，刺激发作，反应和反馈）的事件相关电位（ERP）。在刺激发作，ERPS与我们对对比差异的操纵显着线性相关，验证了我们对任务难度的操纵。对于个人和联合响应，我们发现了一个很高的entro-paretal误差相关的阳性，与错误的不正确的响应相比，这表明准确性已经在响应水平上进行了评估。在反馈介绍时，我们发现了由不正确的关节反应引发的显着迟到的正面正中心潜力。总之，这些结果表明，通过错误监测系统引发的响应和反馈相关组件差异地整合在联合决策过程中交换的冲突信息。

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