Effects of recent word exposure on emotion-word Stroop interference: An ERP study
Effects of recent word exposure on emotion-word Stroop interference: An ERP study
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DOI：
10.1016/j.ijpsycho.2010.12.003
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发表时间：
2011-03-01
影响因子：
3
通讯作者：
Van Strien, Jan W.
中科院分区：
文献类型：
--
作者：
Gootjes, Liselotte;Coppens, Leonora C.;Van Strien, Jan W.
对情感语言材料的注意偏向已被广泛的情感词Stroop任务。虽然在临床组的研究结果表明，干扰效应的情绪的话，涉及到具体的关注组，健康群体的研究结果不太清楚。在本研究中，我们调查了健康个体的情绪Stroop干扰是否会受到任务前接触单词的影响。我们使用事件相关电位（ERPs）检查Stroop干扰的时间方面。参与者指出消极词的颜色比中性词的时间长。暴露的话之前的Stroop任务增加反应延迟，但这种效果是平等的中性和消极的话。在神经生理学水平上，我们发现，在后半潜伏期（P290，N400和LPP），负性比中性Stroop词反应更多的积极事件相关电位。N400的负面暴露比新词，但这种效果并没有互动的情绪效价的话。对于新的（即，行为Stroop干扰与P290、N400和LPP情绪效应（负性减去中性词）相关。连续的ERP组件建议更好的prelexical，语义和持续的注意力处理的情绪词，即使当情绪内容的话是任务无关的。(C)2011 Elsevier B.V.保留所有权利。
Attentional bias towards emotional linguistic material has been examined extensively with the emotion-word Stroop task. Although findings in clinical groups show an interference effect of emotional words that relate to the specific concern of the group, findings concerning healthy groups are less clear. In the present study, we investigated whether emotional Stroop interference in healthy individuals is affected by exposure of the words prior to the task. We used event-related potentials (ERPs) to examine the temporal aspects of Stroop interference. Participants took longer to indicate the colour of negative than of neutral words. Exposure of words prior to the Stroop task increased response latencies, but this effect was equal for neutral and negative words. At the neurophysiological level, we found more positive-going ERPs at later latencies (P290, N400 and LPP) in response to negative than in response to neutral Stroop words. The N400 was less negative for exposed than for new words, but this effect did not interact with the emotional valence of the words. For new (i.e., unexposed) words, the behavioural Stroop interference correlated with the P290, N400 and LPP emotion effects (negative minus neutral words). The successive ERP components suggest better prelexical, semantic, and sustained attentional processing of emotion words, even when the emotional content of the words is task-irrelevant. (C) 2011 Elsevier B.V. All rights reserved.