情绪相关冲动的神经认知机制：唤醒的作用。
Neurocognitive mechanisms of emotion-related impulsivity: The role of arousal.
机构信息
Department of Psychology, University of California, Berkeley, Berkeley, California.
Behavioral Health, McLean Hospital, Belmont, Massachusetts.
出版信息
Psychophysiology. 2019 Feb;56(2):e13293. doi: 10.1111/psyp.13293. Epub 2018 Sep 27.
Prior research suggests that a traitlike tendency to experience impulsivity during states of high emotion is robustly associated with many forms of psychopathology. Several studies tie emotion-related impulsivity to response inhibition deficits, but these studies have not focused on the role of emotion or arousal within subjects. The present study tested whether arousal, measured by pupil dilation, amplifies deficits in response inhibition for those high in emotion-related impulsivity. Participants (N = 85) completed a measure of emotion-related impulsivity, underwent a positive mood induction procedure that reduced heterogeneity in mood states, and completed a response inhibition task. Pupil dilation was used to index arousal during the response inhibition task. Generalized linear mixed effect modeling yielded the hypothesized interaction between arousal (pupil dilation) and emotion-related impulsivity in predicting response inhibition performance at the trial level. Emotion-related impulsivity relates to more difficulties with response inhibition during moments of high arousal.
先前的研究表明，在情绪高涨状态下表现出冲动特质的倾向与许多形式的精神病理学密切相关。有几项研究将与情绪相关的冲动与反应抑制缺陷联系起来，但这些研究并未关注主体内部的情绪或唤醒作用。本研究测试了在情绪相关冲动性较高的个体中，通过瞳孔扩张测量的唤醒是否会放大反应抑制缺陷。参与者（N=85）完成了一项与情绪相关的冲动性的测量，经历了一个积极的情绪诱导程序，该程序减少了情绪状态的异质性，并完成了一项反应抑制任务。瞳孔扩张被用来在反应抑制任务中标记唤醒。广义线性混合效应模型在预测试验水平的反应抑制表现时产生了假设的唤醒（瞳孔扩张）与情绪相关的冲动性之间的相互作用。与情绪相关的冲动性与在高度唤醒时刻更难以进行反应抑制有关。
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