Scale-invariant aspects of cardiac dynamics across sleep stages and circadian phases.
Scale-invariant aspects of cardiac dynamics across sleep stages and circadian phases.
复制标题
跨睡眠阶段和昼夜节律阶段的心脏动力学的尺度不变方面。
DOI：
10.1109/iembs.2006.259760
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Ivanov,PlamenCh
中科院分区：
文献类型：
--
作者：
Ivanov,PlamenCh
我们回顾了最近试图了解睡眠和觉醒状态、睡眠中的睡眠阶段转换以及内源性昼夜节律对心脏动力学的神经自主调节的影响，其代表是心跳波动的尺度不变组织。我们发现，从睡眠状态到清醒状态、跨睡眠阶段和昼夜节律阶段，心跳起伏的概率分布、长程时间相关性以及非线性特性都发生了显著的变化。这些睡眠和昼夜节律调节的心脏动力学变化在广泛的时间尺度上同时发生，这表明睡眠和昼夜节律调节与心脏自主神经控制之间的相互作用比以前所知的更复杂，超出了特定时间尺度上的节律调节。
We review recent attempts to understand the influence of sleep and wake states, sleep-stage transitions during sleep and the endogenous circadian rhythms on the neuroautonomic regulation of cardiac dynamics as represented by the scale-invariant organization of heartbeat fluctuations. We find that the probability distribution, the long-range temporal correlations as well as the nonlinear properties of the heartbeat fluctuations are significantly altered with transition from sleep to wake state, across sleep-stages and circadian phases. These sleep and circadian mediated changes in cardiac dynamics occur simultaneously over a broad range of time scales, suggesting a more complex then previously known interaction between the neural systems of sleep and circadian regulation with the neuroautonomic cardiac control, beyond rhythmic modulation at a characteristic time scale.