评估自我情绪对前额α不对称性的影响
Masato Ito1, Toru Takahashi2,3, Yuto Kurihara1,2,3
1Graduate School of Human Sciences, Waseda University, Tokorozawa, Saitama, Japan.
Brain and behavior
|March 24, 2025
概括
情绪评估会在情绪处理过程中改变大脑活动,特别是前额α不对称 (FAA). 这表明以自我为中心的评估会影响情绪和动机系统,需要在EEG研究中进行方法审查.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 心理生理学 心理生理学
背景情况:
- 使用生物识别信号进行情绪评估通常涉及主观评估.
- 这种评估过程对神经活动,特别是电脑电图 (EEG) 信号的影响尚不清楚.
- 情绪调节理论表明,评估可能会调节情绪体验,但它的神经机制和时间动态仍然不清楚.
研究的目的:
- 调查主观情感评估如何影响EEG测量的情感相关大脑活动的时间动态.
- 测试假设情绪评估通过注意力和自我集中过程增强了情绪处理,反映在正面α不对称 (FAA) 中.
主要方法:
- 在40名健康参与者中测量了29通道EEG,这些参与者接触了不愉快的,高兴度的图像.
- 采用了一种实验设计,比较有和没有主观情感评估的条件,以评估即时和持久的影响.
- 分析了前额α不对称 (FAA) 作为情绪处理和注意力参与的指标.
主要成果:
- 与非评估条件相比,在情绪评估期间,前额α不对称 (FAA) 显着较低.
- 这种调节在早期刺激处理 (300-500 ms) 中尤其明显.
- 研究结果表明,评价自动参与了注意力过程,并可能反映了通过自我关注来增强负面情绪处理和行为抑制.
结论:
- 情绪评估的行为显著改变了早期与情绪相关的大脑活动.
- 以自我为中心的情感评估涉及情感和动机过程.
- 基于EEG的情绪估计研究需要考虑方法,以考虑评估效应.
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