通过睡眠和麻醉在黑色物质中的动态呼吸-神经合
Kolsoum Dehdar1, Elliot Neuberg1, Bon-Mi Gu2,3
1Neuroscience Institute, HMH JFK University Medical Center, Edison, NJ 08820, USA.
概括
呼吸节奏会影响大脑活动,但它们与基底腺的相互作用尚不清楚. 这项研究表明,黑色物质网状体 (SNr) 和运动皮层 (M1) 的呼吸神经合与睡眠和唤醒状态的变化.
科学领域:
- 神经科学是一个神经科学.
- 睡眠科学 睡眠科学
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 呼吸协调了大脑各个区域和状态的神经活动.
- 已知基底腺在睡眠和呼吸中的作用,但它们的节律相互作用尚不清楚.
- 黑色物质的网状体 (SNr),一个基底性细胞的输出核,有未知的呼吸神经合.
研究的目的:
- 在不同行为状态中调查SNR和初级运动皮层 (M1) 中的呼吸神经合.
- 确定这些合是如何通过睡眠 (NREM,REM),清醒和麻醉来调节的.
- 探索呼吸神经合和三角洲振荡之间的关系.
主要方法:
- 在小鼠中从SNr和M1同时记录局部场势 (LFP).
- 隔膜肌肉活动记录.
- 在NREM睡眠,REM睡眠,安静的清醒和胺/西拉麻醉中分析呼吸神经合强度.
主要成果:
- 与REM睡眠和清醒相比,SNR和M1中的呼吸神经合强度在NREM睡眠期间降低.
- 麻醉增强了SNR合,但没有M1合,表明了特定状态的效应.
- 合强度与 delta功率相关;减少合与缓慢 delta功率的增加和快速 delta功率的减少有关.
- 缓慢的三角电源与SNR-M1同步有关,可能会抑制深度睡眠期间的呼吸锁定.
结论:
- 在皮质 - 基底质回路中的呼吸神经合被行为状态动态调节.
- 这些发现揭示了SNR和M1.1中呼吸和神经活动之间的状态依赖相互作用.
- 这项研究强调了呼吸神经合在协调睡眠和麻醉期间的大脑与身体相互作用的潜在作用.
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