声调唤起睡眠的脑电图缓慢振荡作为外周节律的函数:对大脑心脏集成的新见解
Mohamad Forouzanfar1,2,3, Sepehr Sardooeinasab4, Fiona C Baker1
1Center for Health Sciences, SRI International, Menlo Park, California, USA.
Journal of sleep research
|October 3, 2025
概括
在大脑和心脏节律的特定阶段进行声学刺激,可以增强慢波活动 (SWA) 和振荡. 听觉刺激的最佳时间可以通过神经调节来提高睡眠质量和认知功能.
科学领域:
- 神经科学是一个神经科学.
- 睡眠科学 睡眠科学
- 心脏病学 心脏病学
背景情况:
- 声学刺激是一种神经调节技术,可以改善慢波活动 (SWA),与认知健康和自主神经系统功能有关.
- 通过听觉刺激最大化SWA可能取决于相对于正在进行的皮质缓慢振荡的精确时间.
- 睡眠期间中央和外周系统之间的相互作用,特别是在皮质和心脏层面,对于理解刺激处理至关重要.
研究的目的:
- 研究声学刺激的时间与主导皮质 (EEG缓慢振荡) 和心脏 (心率) 节律之间的关系.
- 评估EEG缓慢振荡 (SO) 和心率 (HR) 低频 (LF) 和高频 (HF) 振荡的不同阶段如何影响声调引起的EEG缓慢活动和HR配置文件.
主要方法:
- 在133名青少年身上进行了夜间多睡眠扫描.
- 在非快速眼球运动 (NREM) 睡眠期间,在无人造物和无唤醒期间,发出声学音调.
- 刺激时间与EEG SOs和HR LF/HF振荡的上下状态相对分析.
主要成果:
- 在EEG SOs的上位阶段,HR LF振荡和HR HF振荡的下位阶段的声学刺激显著增加了EEG SO振幅和HR振荡.
- 与其他阶段相比,这些特定的刺激时间也导致了更多的EEG SOs和增加的SWA.
- 这些发现突出了复杂的中周神经系统相互作用对外部刺激的反应,影响皮质和心脏振荡.
结论:
- 与同时发生的中心和外围振荡阶段相比,声刺激的时间对睡眠振荡和自主反应产生了关键的影响.
- 这些结果表明,精确定时的听觉干预可以调节睡眠架构,并可能增强SWA.
- 这项研究为开发使用适应性,多维振荡干预的先进睡眠增强技术提供了基础.
相关概念视频
Electrophysiology of Normal Cardiac Rhythm
8.8K
The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase...
8.8K
Brain Waves
3.9K
Brain waves are electrical signals generated by the neurons in the brain, which are regularly monitored to measure mental activities. Brain waves and their frequency ranges can be measured using an electroencephalogram or EEG. There are four main types of brain waves, each with distinct characteristics:
3.9K
Sleep-Wake Cycles
2.7K
Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
2.7K
ECG Interpretation of Rhythms
12.7K
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
12.7K
Correlation between ECG and Cardiac Cycle
11.7K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
11.7K
Understanding Sleep
1.4K
Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
1.4K


