Neurophysiological correlates of collective perceptual decision-making
Neurophysiological correlates of collective perceptual decision-making
复制标题
集体知觉决策的神经生理学相关性
DOI：
10.1111/ejn.14545
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
König
中科院分区：
文献类型：
--
作者：
Baumgart;Byvshev;Strube;König
人类在日常生活中经常合作执行任务。与其他人合作可能会或可能不会导致比单独完成任务更高的任务表现（即，集体利益）。最近的一项关于知觉决策中集体利益的研究表明，具有相似个人表现的二分体成员获得集体利益。然而，很少有人知道这些结果的生理基础。在这里，我们复制了这一早期的工作，并使用EEG研究了决策的神经生理学相关性。在两个间隔的强迫选择任务中，合作者各自表示存在具有较高对比度的目标刺激，然后在评级量表上表示他们的信心。看着各自的评分，二人组做出了共同的决定。复制早期的工作，我们发现个人表现和集体利益的相似性之间的正相关关系。我们分析了事件相关电位（ERP）在三个阶段（即，刺激起始、反应和反馈）。在刺激开始时，ERPs显着线性相关，我们的操作对比度差异，验证我们的操作任务难度。对于个体和联合反应，我们发现正确与不正确反应的显著中心-顶叶误差相关阳性，这表明准确性已经在反应水平上进行了评估。在反馈呈现时，我们发现不正确的联合反应引起了显著的晚期正性额中央电位。总之，这些结果表明，由错误监控系统引起的响应和反馈相关的组件差异地整合了联合决策过程中交换的相互冲突的信息。
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.
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