关键性支持在意识状态期间的交叉频率皮质 - thalamic信息传输
Daniel Toker1,2, Eli Müller3, Hiroyuki Miyamoto4,5,6
1Department of Neurology, University of California, Los Angeles, Los Angeles, United States.
eLife
|January 5, 2024
概括
意识依赖于大脑皮质和脑海角之间的沟通. 这项研究揭示了一个特定的大脑波模式 (δ/θ/α至γ) 对于意识至关重要,被无意识破坏并被迷幻药增强.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
- 系统神经科学 系统神经科学
背景情况:
- 意识与大脑皮层和脑丘脑之间的双向通信有关.
- 这种皮质体内对话的精确机制及其在失去意识期间的改变尚未完全理解.
研究的目的:
- 为了阐明在意识状态下皮质体体内信息传递的机制.
- 为了确定这种沟通在无意识期间是如何被破坏的.
- 探索大脑关键性在调解这些变化的作用.
主要方法:
- 分析跨频合 (低频到高频波) 在跨物种 (人类,老鼠,小鼠) 的皮质体内通信.
- 使用propofol麻醉诱导无意识和普遍的尖和波发作.
- 使用迷幻药物5-甲基-N,N-二甲基三胺 (5-MeO-DMT).
- 数字模拟和神经电生理学记录从皮质和乳头.
主要成果:
- 鉴定出一种可保留的光谱通道 (δ/θ/α波到γ波),用于皮质体内沟通,存在于意识状态中.
- 这种沟通通道在失去意识 (麻醉,) 时会减弱,而在迷幻状态时会增强.
- 交叉频率信息传输的变化与 thalamocortical 电动力学接近或远离混乱边缘的关键性相关.
结论:
- 皮质体内沟通,特别是通过低到高频谱通道,从根本上与意识状态有关.
- 这种通讯途径的中断可以通过与关键性相对的甲状腺皮层动态的变化来解释.
- 这些发现为理解意识及其破坏提供了一个新的框架.
关键词:
麻醉是一种麻醉.意识 意识 意识 意识 意识有关性的批判性.是一种.人类 人类 人类 人类 人类 人类 人类这里是鼠标鼠标鼠标鼠标鼠标鼠标.神经科学 神经科学生物系统的物理生活系统的物理.迷幻类精神药物 迷幻类精神药鼠标 鼠标 鼠标 鼠标 鼠标泰拉姆斯 (thalamus) 是一个神经系统.更多相关视频
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