Departement de Psychologie, Université du Québec a` Trois-Rivières, Trois-Rivières, Québec, Canada.
Emotion. 2013 Feb;13(1):129-38. doi: 10.1037/a0029520. Epub 2012 Aug 20.
In two experiments, we examined affective responses and attentional bias toward threat. We compared three dimensions of affective responses (subjective, expressive, physiological) to negative and neutral stimuli in high and low anxious participants and examined whether these responses correlated with attentional interference in an emotional Stroop task. We used an evaluative conditioning procedure to manipulate the affective value of stimuli subsequently used in a Stroop task. We measured facial EMG (Experiment 1), skin conductance (Experiment 2), and subjective evaluations (both experiments). High anxious participants displayed Stroop interference from negatively conditioned stimuli. Both high and low anxious participants showed increased facial expressions and physiological arousal to negatively conditioned stimuli during the Stroop task. Findings suggest that differences between high and low anxious participants are more important in the cognitive processing of threat than affective reactions to threat.
在两项实验中，我们考察了对威胁的情感反应和注意偏向。我们比较了高焦虑和低焦虑参与者对负性和中性刺激的三种情感反应（主观、表达、生理）维度，并考察了这些反应是否与情绪 Stroop 任务中的注意干扰相关。我们使用评价性条件作用程序来操纵随后用于 Stroop 任务的刺激的情感价值。我们测量了面部肌电图（实验 1）、皮肤电导（实验 2）和主观评价（两个实验）。高焦虑参与者对负性条件刺激表现出 Stroop 干扰。高焦虑和低焦虑参与者在 Stroop 任务中对负性条件刺激的面部表情和生理唤醒都增加了。研究结果表明，高焦虑和低焦虑参与者在威胁的认知加工方面的差异比他们对威胁的情感反应更为重要。
