负面链接对大脑功能网络在情绪处理过程中的结构平衡的影响
Farhad Soleymani1, Reza Khosrowabadi2,3, Mir Mohsen Pedram1,4
1Institute for Cognitive Science Studies, Tehran, Iran.
Scientific reports
|September 25, 2023
概括
负面的大脑连接,或反同步,影响情绪处理. 愉快的刺激增加了theta频段的负链接和网络稳定性,而不愉快的刺激改变了即将发生事件的β频段稳定性.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 网络科学 网络科学
背景情况:
- 大脑区域的同步对于处理情绪至关重要.
- 在情感网络中,反同步 (负联系) 的作用尚不清楚.
- 负面链接可能会通过三元关联影响网络稳定性.
研究的目的:
- 调查负面链接的数量和拓如何影响情绪感知过程中大脑网络的稳定性.
- 为了比较愉快和不愉快的刺激之间的网络特性.
主要方法:
- 健康的参与者看了愉快和不愉快的图像.
- 使用EEG记录了大脑反应.
- 分析了功能连接网络的负链接,三合体,枢纽和能量水平.
主要成果:
- 愉快的刺激与theta频段中更多的负链接和更少的枢纽相关,这表明网络更稳定.
- 不愉快的刺激在β频段显示相反的模式,网络稳定性较差.
- 泰达带表现出更少的不平衡三合体和更大的稳定性对愉快的刺激.
- 贝塔带显示出更少的平衡三元体,并且对不愉快的刺激的稳定性降低.
结论:
- 在情绪处理过程中,负面链接在调节大脑网络稳定性方面发挥着重要作用.
- 大脑网络对愉快和不愉快的刺激有不同的适应性,甲带有利于积极情绪的稳定性,而乙带适应未来的事件.
- 区域间通信需要对不愉快的刺激进行更少的调整,而β频段的不稳定性则为后续事件准备了网络.
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