Department of Psychology, The Chinese University of Hong Kong, Hong Kong SAR; Center for Cognition and Brain Studies, The Chinese University of Hong Kong, Hong Kong SAR.
Department of Psychology, The Education University of Hong Kong, Hong Kong SAR.
Biol Psychol. 2020 May;153:107880. doi: 10.1016/j.biopsycho.2020.107880. Epub 2020 Mar 10.
The current study investigated if feedback-related negativity (FRN) and mid-frontal theta oscillations would respond differently during the outcome evaluations of conformity decisions, which were consistent with self vs. others' opinions. Participants first performed a perceptual judgment task, then saw the majority opinion prior to submitting their final decision, and subsequently learned whether their final decision was correct. With incongruent initial self and others' opinions, the incorrect feedback to a non-conform (no-change) final decision elicited larger FRN while the incorrect feedback to a conform (change) decision elicited larger theta power, compared to their respective correct decisions. In addition, beta power was larger in the correct than incorrect conform decision. FRN and theta power, but not beta power, were associated with subsequent conformity behavior. The FRN and theta signals therefore demonstrated differential sensitivity to the source of information that drove a conformity decision.
当前研究调查了在与自我或他人观点一致的从众决策结果评估中，反馈相关负波（FRN）和额中线theta 振荡是否会做出不同反应。参与者首先进行了知觉判断任务，然后在提交最终决定之前看到了多数意见，随后得知他们的最终决定是否正确。在初始的自我和他人意见不一致的情况下，与非从众（不变）的最终决定的不正确反馈相比，对从众（改变）决策的不正确反馈会引起更大的 FRN，而对正确决策的反馈则会引起更大的 theta 功率。此外，在正确的从众决策中，beta 功率大于不正确的从众决策。随后的从众行为与 FRN 和 theta 功率相关，而与 beta 功率无关。因此，FRN 和 theta 信号对驱动从众决策的信息来源具有不同的敏感性。
