Someone’s lurking in the dark: The role of state anxiety on attention deployment to threat-related stimuli

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• 作者：Valentina Rossi ; ^{valentina.rossi@ugent.be} ; Gilles Pourtois
• 关键词：State anxiety ; Attentional scope ; Hypervigilance ; Bias ; ERPs ; C1 ; Load ; Stress
• 刊名：Biological Psychology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：122
• 期：Complete
• 页码：21-32
• 全文大小：2010 K
• 卷排序：122

文摘

An attentional bias for threat-related stimuli was observed at the level of the C1 (75 ms), but only when task load was high. State anxiety abolished the load effect observed for neutral stimuli on the C1 amplitude, suggesting early sensory hypervigilance. During the anxiety induction, a trend for increased early responses to visual stimuli (both neutral and threat-related) was observed. State anxiety impaired goal-directed processing, reducing target-locked P300 amplitude, but mostly for low task demands. State anxiety biased attention and resource allocation, enhancing bottom-up capture at the expense of goal-directed attention.