通过对边缘活动的时间变异性进行聚类来识别情感状态,以及负面情绪的调解作用
Dong Yun Lee1,2, Seulgi Lee1,3, Sang Joon Son4
1Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Republic of Korea.
Molecular psychiatry
|October 2, 2025
概括
杏仁体和核 (大脑的情绪中心) 的时间变化增加与愤怒加剧有关,甚至在健康人群中,可能会加剧抑郁和焦虑症状.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 认知科学 认知科学
背景情况:
- 杏仁体和核 accumbens 对于情绪调节至关重要.
- 抑郁和焦虑的特点是情绪失调.
- 关于边缘区域与情绪状态有关的时间动态的研究有限.
研究的目的:
- 调查边缘系统 (杏仁体和核) 的时间变化与情绪状态之间的关联.
- 探索负面情绪,特别是愤怒在这种关系中的调解作用.
- 分析健康成年人的功能网络时间特征.
主要方法:
- 利用了来自1080名健康受试者的功能磁共振成像 (fMRI) 数据 (人类结合体项目).
- 应用组独立组分分析,从边缘区域提取9个功能网络.
- 对这些网络的时间变化进行了光谱聚类.
主要成果:
- 根据边缘网络的时间变化,确定了两个不同的健康成年人群.
- 发现功能网络的时间变化增加与情绪状态 (抑郁,焦虑) 的恶化有关.
- 这种关联部分是由愤怒和身体侵略水平调解的.
结论:
- 边缘区域内的时间变化可能会影响愤怒.
- 反过来,愤怒水平也会影响情绪状态,如抑郁和焦虑.
- 这些发现表明,即使在健康人群中,情绪失调也可能是潜在的神经机制的基础.
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