Modulations of the electrophysiological response to pleasant stimuli by cognitive reappraisal
Modulations of the electrophysiological response to pleasant stimuli by cognitive reappraisal
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DOI：
10.1037/1528-3542.8.1.132
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发表时间：
2008-02-01
期刊：
影响因子：
4.2
通讯作者：
Simons, Robert F.
中科院分区：
文献类型：
--
作者：
Krompinger, Jason W.;Moser, Jason S.;Simons, Robert F.
研究表明，个体成功地使用认知的、聚焦于先行事件的技术来调节他们的情绪以应对消极的刺激(参看。格罗斯，1998)。事件相关电位的研究已经阐明了候选的神经关联，特别是晚期正电位(LPP)的调制，以指示情绪调节过程。本研究试图将情绪调节对LPP的影响扩展到正价刺激领域。20名受试者完成了一项受阻的情绪调节任务：第一组包括被动地观看愉快和中性的图片，而最后两组包括减少或增加情绪到令人愉快的图片。结果重复了我们之前的发现，在负价刺激下，在减少指令期间LPP减弱，而增加指令没有效果。在LPP的正向慢波时间窗中，作为指令功能的ERP的调制最为显著，这表明分配给愉快刺激知觉加工的注意资源可能是通过情绪调节策略来操纵的。
Research indicates that individuals successfully regulate their emotions to negatively valenced stimuli using cognitive, antecedent-focused techniques (cf. Gross, 1998). Event-related potential studies have elucidated candidate neural correlates, particularly modulations of the late positive potential (LPP) to index emotion regulation processes. The present study attempted to extend prior demonstrations of emotion regulation effects on the LPP to the domain of positively valenced stimuli. Twenty participants completed a blocked emotion regulation task: The first block consisted of passively viewing pleasant and neutral pictures, whereas the last two blocks consisted of either decreasing or increasing emotions to pleasant pictures. Results replicated our previous findings with negatively valenced stimuli, demonstrating an attenuated LPP during decrease instructions and no effect of increase instructions. Modulation of the ERP as a function of instruction was most prominent during the positive-going slow-wave time window of the LPP, indicating that attentional resources allocated to the perceptual processing of pleasant stimuli may be manipulated using emotion regulation strategies.