在EEG中反映的情绪处理和重新评估的神经相关性
Jinyu Chen1, Irene van de Vijver1, Evan Canny2
1Experimental Psychology and Helmholtz Institute, Utrecht University, the Netherlands.
概括
在情绪调节过程中,情绪重新评估会改变电皮质反应,特别是晚期积极潜力 (LPP). 这项研究研究了情绪调节的神经机制,在重新评估期间发现了持续的LPP效应.
科学领域:
- 认知神经科学 认知神经科学
- 情感神经科学是一种神经科学.
- 心理生理学 心理生理学
背景情况:
- 情绪调节策略,如重新评估,通过重新解释刺激来修改情绪体验.
- 了解情绪调节的神经相关性对于解释其有效性至关重要.
- 晚期积极潜力 (LPP) 是情绪处理的关键电生理学标记.
研究的目的:
- 为了研究在情绪调节期间改变的情绪体验和电皮质反应之间的关系.
- 探索成功情绪调节的基础的神经机制,特别是重新评估.
- 检查重新评估对晚期积极潜力 (LPP) 和 Θ 振荡的影响.
主要方法:
- 电脑电图 (EEG) 被记录在一个有线索的情绪调节范式.
- 参与者看了负面和中性图片,有或没有重新评估说明.
- 以假设为导向的分析侧重于晚期积极潜力 (LPP);还使用了局部化方法.
主要成果:
- 在被动观看过程中,早期的正面-中心-平面LPP (400-1000 ms) 增加了负图像和中性图像.
- 重新评估并没有降低LPP;相反,对表层LPP的情绪效应一直持续到图片偏移.
- 没有观察到与情绪处理或重新评估相关的theta活动的显著影响.
结论:
- 情绪调节,特别是重新评估,以复杂的方式影响LPP,可能涉及情感和认知因素.
- 在重新评估期间,持续的头顶LPP表明与情绪刺激的长期接触.
- 泰达振荡在情绪调节中的作用需要进一步研究.
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