社会焦虑参与者处理社会威胁词的电生理证据
Jinwei Yang1, Feng Si2, Jianqin Cao3
1Key Laboratory of Basic Research and Health Management on Chronic Diseases in Heilongjiang Province, Harbin Medical University, Daqing Campus, Xinyang Street 39, Daqing, 163319, Heilongjiang, China.
BMC psychiatry
|August 26, 2025
概括
社交焦虑会加剧大脑对社会威胁的早期反应. 高社会焦虑个体表现出加剧的早期注意力分配和感知编码的情感内容,影响威胁的文字处理.
科学领域:
- 神经科学
- 认知心理学
- 社会心理学
背景情况:
- 社会焦虑与对社会威胁的注意偏见有关.
- 这些偏差在SA中的神经处理阶段仍然不清楚.
研究的目的:
- 调查社会焦虑如何影响处理社会威胁词语的时间动态.
- 澄清神经处理阶段, 在社会焦虑中出现注意偏差.
主要方法:
- 使用脑电图 (EEG) 和情绪Stroop任务.
- 根据LSAS得分,参与者被分为高社会焦虑 (HSA) 和低社会焦虑 (LSA).
- 分析包括反应时间 (RT) 和事件相关潜力 (ERP):P2,早期后阴性 (EPN) 和晚期阳性潜力 (LPP).
主要成果:
- HSA组对威胁词的反应较慢,而LSA组则没有.
- 这两组对威胁词的P2幅度都增加了,
- HSA组对威胁词的负 EPN 幅度更高,这表明早期注意力分配和感知编码增加.
结论:
- 社交焦虑会影响社会威胁的早期处理.
- P2反映了对威胁的一般注意力敏感性,而EPN则在SA中增加,表明早期情绪处理有所增强.
- 社会焦虑中的注意偏差可能起源于早期的感知编码,而不是后来的评估阶段.
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