Face Perception in Social Anxiety: Visuocortical Dynamics Reveal Propensities for Hypervigilance or Avoidance

管理层 社交焦虑 心理学 焦虑 注意偏差 社会抑制 惊恐障碍 面部表情 临床心理学 广场恐怖症 发展心理学 精神科 沟通
作者
Lisa M. McTeague,Marie-Claude Laplante,Hailey W. Bulls,Joshua R. Shumen,Peter J. Lang,Andreas Keil
出处
期刊:Biological Psychiatry [Elsevier]
卷期号:83 (7): 618-628 被引量:39
标识
DOI:10.1016/j.biopsych.2017.10.004
摘要

Background Theories of aberrant attentional processing in social anxiety, and anxiety disorders more broadly, have postulated an initial hypervigilance or facilitation to clinically relevant threats and consequent defensive avoidance. However, existing objective measurements utilized to explore this phenomenon lack the resolution to elucidate attentional dynamics, particularly covert influences. Methods We utilized a continuous measure of visuocortical engagement, the steady-state visual evoked potential in response to naturalistic angry, fearful, happy, and neutral facial expressions. Participants were treatment-seeking patients with principal diagnoses of social anxiety circumscribed to performance situations (n = 21) or generalized across interaction contexts (n = 42), treatment-seeking patients with panic disorder with agoraphobia (n = 25), and 17 healthy participants. Results At the principal disorder level, only circumscribed social anxiety patients showed sustained visuocortical facilitation to aversive facial expressions. Control participants as well as patients with panic disorder with agoraphobia and generalized social anxiety showed no bias. More finely stratifying the sample according to clinical judgment of social anxiety severity and interference revealed a linear increase in visuocortical bias to aversive expressions for all but the most severely impaired patients. This group showed an opposing sustained attentional disengagement. Conclusions Rather than shifts between covert vigilance and avoidance of aversive facial expressions, social anxiety appears to confer a sustained bias for one or the other. While vigilant attention reliably increases with social anxiety severity for the majority of patients, the most impaired patients show an opposing avoidance. These distinct patterns of attentional allocation could provide a powerful means of personalizing neuroscience-based interventions to modify attention bias and related impairment.

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