在人类REM睡眠期间增加的thalamic内和thalamo-cortical功能连接:来自两夜EEG-fMRI研究的见解
Fan Nils Yang1, Dante Picchioni1, Jacco A de Zwart1
1Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States.
Imaging neuroscience (Cambridge, Mass.)
|November 24, 2025
概括
在快速眼动 (REM) 睡眠期间,丘脑与感官网络进行广泛的连接,特别是在做梦 (相位REM) 期间. 这表明丘脑分发内部感官信息,可能解释生动的梦想.
科学领域:
- 神经科学是一个神经科学.
- 睡眠科学 睡眠科学
背景情况:
- 快速眼动 (REM) 睡眠的特点是生动的梦想和肌肉.
- 没有外部刺激的沉浸式梦境体验背后的神经机制仍然不清楚.
研究的目的:
- 为了研究在REM睡眠期间的乳头连接在产生内部产生的感觉体验中的作用.
- 为了区分强力和相位REM睡眠阶段之间的乳头功能连接 (FC).
主要方法:
- 对12名参与者进行了8小时的同时使用脑电图 (EEG) 和功能磁共振成像 (fMRI) 记录.
- 功能连接性 (FC) 分析对乳头皮子网络和感觉网络进行了分析.
- 隐藏的马尔科夫模型被用来分类强力和相位REM睡眠状态.
主要成果:
- 在REM睡眠期间,所有胸膜子网络与视觉,运动,听觉和行动计划网络同时连接,与清醒期间不同.
- 在REM睡眠期间,与清醒和非REM睡眠相比,thalamic内连接性显著更高.
- 阶段性REM睡眠表现出明显更大的thalamic内和thalamo-cortical FCs比强度REM睡眠.
结论:
- 丘陵体在REM睡眠期间将内部产生的感觉信息分发到皮质网络中起着至关重要的作用.
- 增加的胸膜连接,特别是在REM阶段,可能是生动梦想的神经机制的基础.
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