The Research Domain Criteria (RDoC) positive valence systems domain include multiple aspects of reward responsiveness with potential to elucidate the understanding of motivational and hedonic deficits in psychological disorders. There is a need for reliable and valid methods to delineate behavioral and biological processes underlying stages of reward responsiveness. Event‐related potentials (ERPs) offer a promising method for examining the temporal dynamics of reward processing, but the literature has mainly focused on the feedback stage and often single components. We investigated the electrophysiological aspects of reward anticipation and initial response to reward using an ERP monetary incentive delay task in 114 emerging adults. Principal component analysis was used to derive temporally and spatially distinct ERP components sensitive to reward processing. Components that reflect initial engagement toward a cue indicating potential reward (cue‐P3) and anticipation of possible reward feedback (stimulus‐preceding negativity; SPN) emerged in the anticipatory stage. In the initial response to reward stage, a reward positivity (RewP) was found. We further tested the association between ERPs and self‐reported facets of the behavioral activation system. Greater self‐reported reward responsiveness was associated with heightened response in the anticipatory stage (i.e., cue‐P3, SPN). Self‐reported drive was positively associated with RewP, but fun‐seeking was negatively associated with RewP. Additional components were observed beyond those identified in prior work, warranting future research on temporal dynamics of reward processing across stages. Furthermore, examination of a broader range of reward‐related ERPs in clinical populations has the potential to more precisely characterize alterations in positive valence systems in psychopathology.

中文翻译：

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奖励反应的不同阶段：神经生理学测量和与行为激活系统方面的关联

研究领域标准 (RDoC) 正价系统领域包括奖励反应的多个方面，有可能阐明对心理障碍中动机和享乐缺陷的理解。需要可靠和有效的方法来描述奖励反应阶段的行为和生物学过程。事件相关电位 (ERP) 为检查奖励处理的时间动态提供了一种很有前途的方法，但文献主要集中在反馈阶段，通常是单个组件。我们使用 ERP 货币激励延迟任务在 114 名新兴成年人中调查了奖励预期和对奖励的初始反应的电生理方面。主成分分析用于导出对奖励处理敏感的时间和空间上不同的 ERP 组件。反映对指示潜在奖励的线索（cue-P3）和对可能奖励反馈的预期（刺激先于消极性；SPN）的初始参与的成分出现在预期阶段。在对奖励阶段的初始响应中，发现了奖励积极性（RewP）。我们进一步测试了 ERP 与行为激活系统的自我报告方面之间的关联。更大的自我报告的奖励反应与预期阶段的反应增强有关（即，cue-P3，SPN）。自我报告的驾驶是 反映对指示潜在奖励的线索（cue-P3）和对可能奖励反馈的预期（刺激先于消极性；SPN）的初始参与的成分出现在预期阶段。在对奖励阶段的初始响应中，发现了奖励积极性（RewP）。我们进一步测试了 ERP 与行为激活系统的自我报告方面之间的关联。更大的自我报告的奖励反应与预期阶段的反应增强有关（即，cue-P3，SPN）。自我报告的驾驶是 反映对指示潜在奖励的线索（cue-P3）和对可能奖励反馈的预期（刺激先于消极性；SPN）的初始参与的成分出现在预期阶段。在对奖励阶段的初始响应中，发现了奖励积极性（RewP）。我们进一步测试了 ERP 与行为激活系统的自我报告方面之间的关联。更大的自我报告的奖励反应与预期阶段的反应增强有关（即，cue-P3，SPN）。自我报告的驾驶是 更大的自我报告的奖励反应与预期阶段的反应增强有关（即，cue-P3，SPN）。自我报告的驾驶是 更大的自我报告的奖励反应与预期阶段的反应增强有关（即，cue-P3，SPN）。自我报告的驾驶是与 RewP呈正相关，但寻求乐趣与 RewP呈负相关。除了先前工作中确定的成分之外，还观察到了其他成分，这保证了未来对跨阶段奖励处理的时间动态的研究。此外，对临床人群中更广泛的奖励相关 ERP 的检查有可能更准确地描述精神病理学中正价系统的变化。