大脑功能模式的动态框架,是由自发的思想塑造的,超出了默认模式网络
Sandrine Cremona1, Achille Gillig2, Emmanuel Mellet2
1Univ. Bordeaux, CNRS, CEA, IMN, UMR 5293, 146 rue Léo Saignat, 33000, Bordeaux, France. sandrine.cremona@u-bordeaux.fr.
大脑网络模式揭示了各种自发的思维特征. 这些发现重新定义了休息状态大脑活动作为功能连接的动态相互作用,而不仅仅是默认模式网络.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 脑部成像 脑部成像
背景情况:
- 认知功能源于大脑网络中的复杂相互作用.
- 功能连接 (FC) 显示出稳定的大脑组织和认知状态的个体变化.
研究的目的:
- 研究自发思维概况与功能网络组织之间的关系.
- 探索网络集成和分离模式如何表征不同的认知状态.
主要方法:
- 分析了来自1717名参与者的功能连接数据.
- 与大脑网络整合和分离的模式相关联自发的思想概况.
主要成果:
- 独特的自发思维特征 (唤起,警,波动,视觉,语言) 与特定的功能网络模式保持一致.
- 唤起思想与自我意识,执行和视觉网络集成有关.
- 警觉的思想与突出性和感官运动网络集成有关.
- 波动的想法与执行网络集成有关.
- 视觉和语言思想分别显示视觉和语言网络的分离.
结论:
- 自发的思想多样性是由独特的功能连接模式支的.
- 休息状态的大脑活动是一种动态的,分布式网络现象.
- 认知状态的个体差异是由网络集成和隔离的平衡来定义的.
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