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相关概念视频

Altered States of Awareness01:06

Altered States of Awareness

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Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
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Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
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相关实验视频

Updated: Feb 28, 2026

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
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Published on: March 21, 2019

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在功能性神经障碍中改变微状态动态.

Irene Lozzi1, Cristina Concetti2, Natascha Stoffel3

  • 1Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.

NeuroImage. Clinical
|February 26, 2026
PubMed
概括

功能神经障碍 (FND) 涉及到大脑网络组织的破坏. 静止状态EEG微态分析显示,FND患者的时间动态发生了变化,与症状严重程度相关.

关键词:
电脑电图 (EEG) 是一种电脑电图.功能神经系统障碍 功能神经系统障碍微观状态 微观状态休息状态的休息状态.

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科学领域:

  • 神经科学是一个神经科学.
  • 临床神经学 临床神经学
  • 大脑网络动力学

背景情况:

  • 功能神经障碍 (FND) 呈现出残疾症状,没有明显的结构性脑病理.
  • 调查内在大脑网络组织中的干扰对于理解FND至关重要.
  • 电脑电图 (EEG) 提供高时间分辨率来研究大脑动态.

研究的目的:

  • 用EEG微态分析来描述FND中大脑活动的时间动态.
  • 探索微观状态变化与FND症状严重程度之间的关系.
  • 评估EEG微态在FND患者和健康对照者之间进行歧视的潜力.

主要方法:

  • 应用了七类微态分解对39名FND患者和47名对照者的静止状态EEG数据.
  • 根据已确立的地形,标记了A-G微国家.
  • 与症状严重程度相关的微状态持续时间 (简化功能运动障碍评级表) 和用于群体歧视的逻辑回归.

主要成果:

  • 与对照组相比,FND患者的微状态G (感官运动一体化) 持续时间显著减少.
  • 减少微状态G持续时间与FND症状严重程度负相关.
  • 在FND中,明显的微状态过渡模式 (A,B,C) 表明改变了兴奋,视觉图像和自我参考处理网络.

结论:

  • 这项研究提供了第一个直接证据,证明了异构的FND队列中中断的静止状态微状态组织.
  • 脑电图微态分析为了解FND的神经基础提供了有价值的工具.
  • 这些发现突出了FND诊断和严重程度评估的潜在生物标志物.