Georgiou George A, Bleakley Cheryl, Hayward James, Russo Riccardo, Dutton Kevin, Eltiti Stacy, Fox Elaine
University of Essex, Colchester, UK.
Vis cogn. 2005;12(1):145-158. doi: 10.1080/13506280444000076.
Evidence suggests that anxiety is associated with a shift of visual attention toward threatening stimuli in the environment, such as facial expressions (Mogg & Bradley, 1999). More recent evidence, however, indicates that anxiety may be better characterized by a failure to rapidly disengage the visual attention system away from threat-related facial expressions (Fox, Russo, Bowles, & Dutton, 2001). The present study further investigates this delayed disengagement hypothesis. Results show that high trait-anxious individuals, in contrast to low trait-anxious individuals, take longer to classify peripheral target letters when fearful facial expressions were presented at fixation relative to sad, happy, or neutral expressions. These findings demonstrate a specific tendency to dwell on fear-relevant stimuli, as opposed to negative information in general. These findings are considered from an evolutionary perspective and the possible role of delayed disengagement from threat in the maintenance of anxiety states is also discussed.
有证据表明,焦虑与视觉注意力转向环境中的威胁性刺激(如面部表情)有关(莫格和布拉德利,1999年)。然而,最近的证据表明,焦虑的更好特征可能是视觉注意力系统无法迅速从与威胁相关的面部表情上脱离(福克斯、鲁索、鲍尔斯和达顿,2001年)。本研究进一步探讨了这种延迟脱离假说。结果表明,与低特质焦虑个体相比,高特质焦虑个体在注视点呈现恐惧面部表情时,相对于悲伤、快乐或中性表情,对周边目标字母进行分类的时间更长。这些发现表明了一种专注于恐惧相关刺激的特定倾向,而不是一般的负面信息。从进化的角度对这些发现进行了考量,并讨论了从威胁中延迟脱离在焦虑状态维持中可能发挥的作用。