Department of Psychology, Brigham Young University, 244 TLRB, Provo, UT 84602, USA.
Soc Cogn Affect Neurosci. 2012 Aug;7(6):677-88. doi: 10.1093/scan/nsr040. Epub 2011 Jun 17.
Previous research suggests that performance-monitoring processes are related to personality traits; relationships with affective states, however, remain unclear. The purpose of this study was to replicate and extend previous findings that induced state negative affect alters electrophysiological reflections of performance monitoring. High-density event-related potentials (ERPs) were obtained from 69 healthy individuals (41 female, 28 male) who completed an Eriksen flanker task and received either encouraging or derogatory feedback based on mean reaction times (RTs) for 30-trial sub-blocks. Affective state, behavioral measures (i.e. error rates, RTs) and ERP measures [i.e. error-related negativity (ERN), post-error positivity (Pe) and N2] were assessed. Reaction times did not differ between feedback groups. Participants who received derogatory feedback committed more errors over time. Despite changes in affect, no significant group differences were demonstrated for behavioral or ERP measures of performance monitoring. Increases in vigilance were associated with more negative N2 amplitudes; no other changes in affective state were associated with changes in ERP measures. Results are consistent with findings suggesting performance-monitoring processes are only slightly affected by changes in affective state and fail to replicate previous studies suggesting the ERN is related to state changes in affect-supporting the possibility of the ERN as an endophenotype.
先前的研究表明，绩效监测过程与人格特质有关；然而，与情感状态的关系仍不清楚。本研究的目的是复制和扩展先前的发现，即诱导的状态负面情绪会改变绩效监测的电生理反射。从 69 名健康个体（41 名女性，28 名男性）中获得高密度事件相关电位（ERP），他们完成了埃里森侧翼任务，并根据 30 个试次子块的平均反应时间（RT）接受鼓励或贬低的反馈。评估了情感状态、行为测量（即错误率、RT）和 ERP 测量（即错误相关负波（ERN）、错误后正波（Pe）和 N2）。反馈组之间的 RT 没有差异。随着时间的推移，收到贬低反馈的参与者犯的错误更多。尽管情感发生了变化，但在绩效监测的行为或 ERP 测量方面，没有显示出显著的组间差异。警觉性的增加与更负的 N2 振幅有关；情感状态的其他变化与 ERP 测量的变化无关。结果与表明绩效监测过程仅受情感状态变化的轻微影响的发现一致，并且未能复制先前表明 ERN 与情感状态变化相关的研究，支持 ERN 作为一个表型的可能性。
