正念冥想风格以不同的方式调节源级MEG微态动态和复杂度
Antea D'Andrea1, Pierpaolo Croce1, Jordan O'Byrne2
1Department of Neuroscience, Imaging and Clinical Sciences, University of Chieti-Pescara, Chieti, Abruzzo, Italy.
Frontiers in neuroscience
|February 19, 2024
概括
正念冥想,包括集中注意力冥想 (FAM) 和开放监测冥想 (OMM),改变了大脑微观状态的动态. 这些冥想方式改变了大脑的关键性,影响了认知状态和表现.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 心理学 心理学 心理学
背景情况:
- 正念冥想,包括集中注意力冥想 (FAM) 和开放监测冥想 (OMM),有着丰富的研究历史.
- 磁脑电图 (MEG) 和电脑电图 (EEG) 提供高时间分辨率来研究冥想的神经相关性.
- 大脑活动是动态的,在不同的大脑状态 (微状态) 之间过渡,这些状态越来越多地被研究.
研究的目的:
- 在FAM,OMM和静止状态期间探索磁脑成像 (MEG) 源级微态.
- 分析这些微状态之间的动态过渡的复杂性和关键性.
主要方法:
- 十位经验丰富的佛教僧侣参加了这次活动,他们在FAM,OMM和休息状态期间进行了MEG录音.
- 使用eLORETA进行源重建和皮质分片进行.
- 微态分析,赫斯特指数和Lempel-Ziv复杂性 (LZC) 从微态序列计算出来.
主要成果:
- 特定的微状态是由冥想状态和风格调节的.
- 与休息相比,冥想期间赫斯特指数值下降.
- 在静止状态,FAM和OMM之间,LZC有显著的差异,显示出逐渐增加.
结论:
- 冥想,包括FAM和OMM,改变了大脑微观状态的动态和关键性.
- 冥想期间大脑关键性指数的变化表明对认知表现的状态效应.
- 冥想期间经历的认知转变与临界点附近的动态大脑状态过渡并行.
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