Electrocortical Evidence of Enhanced Performance Monitoring in Social Anxiety
Electrocortical Evidence of Enhanced Performance Monitoring in Social Anxiety
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DOI：
10.1016/j.beth.2015.12.002
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发表时间：
2016-03-01
期刊：
影响因子：
3.7
通讯作者：
Mills, Adam C.
中科院分区：
文献类型：
--
作者：
Judah, Matt R.;Grant, DeMond M.;Mills, Adam C.
自我关注被认为是社交焦虑症的一个关键特征。然而，很少有研究使用事件相关电位（ERP）来检查社交焦虑的个体是否对他们的表现出更大的监控和对他们的错误的关注。同样，只有少数研究使用ERPs来研究社交焦虑与绩效反馈处理的关系。高（n = 26）和低（n = 28）社交焦虑水平的个人完成了试错学习任务。在随机的试验子集中，使用假心率反馈来操纵自我关注。在积极背景下（正确=快乐的脸;不正确=中性的脸）和消极背景下（正确=中性的脸;不正确=厌恶的脸）使用情感和中性的脸给出表现反馈，以调查有偏见的解释和对反馈的关注。社交焦虑的受试者表现出增强的ERN和CRN的幅度，这表明更大的反应监测，和增强的Pe幅度，这表明更大的处理错误相对于低社交焦虑组。在反馈处理方面没有观察到组间差异。在学习刺激反应映射在消极的情况下，FRN是更大的自我关注相比，标准的试验和稍微更大的社交焦虑的主题相比，控制。这些发现支持认知模型，并为未来的研究提出了途径。
Self-focused attention is thought to be a key feature of social anxiety disorder. Yet few studies have used event-related potentials (ERPs) to examine whether socially anxious individuals display greater monitoring of their performance and attention to their errors. Similarly, only a few studies have used ERPs to examine how social anxiety is related to processing of performance feedback. Individuals with high (n = 26) and low (n = 28) levels of social anxiety completed a trial-and-error learning task. Self-focus was manipulated using false heart-rate feedback during a random subset of trials. Performance feedback was given using emotional and neutral faces in a positive context (correct = happy face; incorrect = neutral face) and negative context (correct = neutral face; incorrect = disgust face) in order to investigate biased interpretation and attention to feedback. Socially anxious subjects displayed enhanced amplitude of the ERN and CRN, suggesting greater response monitoring, and enhanced Pe amplitude, suggesting greater processing of errors relative to the low social anxiety group. No group differences were observed with respect to feedback processing. Before learning stimulus response mappings in the negative context, the FRN was larger for self-focus compared to standard trials and marginally larger for socially anxious subjects compared to controls. These findings support cognitive models and suggest avenues for future research.