Attentional bias in anxiety: A behavioral and ERP study
Attentional bias in anxiety: A behavioral and ERP study
复制标题
DOI：
10.1016/j.bandc.2005.03.005
复制
发表时间：
2005-10-01
影响因子：
2.5
通讯作者：
Glickman, S
中科院分区：
文献类型：
--
作者：
Bar-Haim, Y;Lamy, D;Glickman, S
越来越多的证据表明，在焦虑的个体中存在有利于威胁相关刺激的加工偏差。本研究采用行为学和ERP技术，考察了高焦虑和低焦虑被试对不同情绪表情面孔刺激的注意配置。一个注意力转移的范式中，面对中立，愤怒，恐惧，悲伤，或快乐的表情，单独提出的固定。参与者必须注视面部线索，然后辨别随机出现在注视面部上方、下方、左侧或右侧的目标形状。行为数据显示，高度焦虑的参与者对目标的反应较慢，无论面部线索表达的情绪如何。与此相反，ERP数据表明，威胁相关的面孔引起更快的潜伏期和更大的幅度的早期ERP组件在高焦虑比低焦虑的个人。ERP波形中的组间模式表明，高焦虑参与者的反应时间较慢可能反映了对面部线索的注意力增加，而不是反应的普遍放缓。(c)2005年爱思唯尔公司All rights reserved.
Accumulating evidence suggests the existence of a processing bias in favor of threat-related stimulation in anxious individuals. Using behavioral and ERP measures, the present study investigated the deployment of attention to face stimuli with different emotion expressions in high-anxious and low-anxious participants. An attention-shifting paradigm was used in which faces with neutral, angry, fearful, sad, or happy expressions were presented singly at fixation. Participants had to fixate on the face cue and then discriminate a target shape that appeared randomly above, below, to the left, or right of the fixated face. The behavioral data show that high-anxious participants were slower to respond to targets regardless of the emotion expressed by the face cue. In contrast, the ERP data indicate that threat-related faces elicited faster latencies and greater amplitudes of early ERP components in high-anxious than in low-anxious individuals. The between-group pattern in ERP waveforms suggests that the slower reaction times in high-anxious participants might reflect increased attentional dwelling on the face cues, rather than a general slowing of response enacting. (c) 2005 Elsevier Inc. All rights reserved.