层次波动塑造了一个与意识状态相关的动态流
Ang Li1, Haiyang Liu2,3, Xu Lei4,5
1State Key Lab of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China. al@ibp.ac.cn.
Nature communications
|June 5, 2023
概括
研究人员发现了一种与意识相关的脑活动特征,显示了变化状态的变化,如迷幻药的使用和精神病. 这一发现揭示了大脑动态如何支持全球意识.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
背景情况:
- 意识是从复杂的时空神经动态中产生的.
- 神经灵活性和意识的区域专业化之间的相互作用尚未完全理解.
研究的目的:
- 为了识别与意识相关的神经特征.
- 为了调查这种签名与改变意识状态之间的关系.
主要方法:
- 对沿着单模转模皮质轴的自发神经波动的分析.
- 准周期性模式检测用于识别传播波.
- 神经成像,电生理学和转录基因数据的整合.
主要成果:
- 确定了一种与意识相关的签名,其特点是转移自发波动.
- 这种特征在改变状态中升高,包括迷幻状态和精神病.
- 层次动态反映了全球一体化和连接组多样性,与唤醒和清醒相关.
结论:
- 全球意识的支持是高效的等级处理沿着一个低维的宏观尺度皮质梯度.
- 识别的签名为改变意识状态提供了一个敏感的标记.
- 神经动力学,特别是组织氨基系统,在支持清醒和意识方面发挥着至关重要的作用.
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