Correlated and uncorrelated regions in heart-rate fluctuations during sleep

被引：459

作者：

Bunde, A ^{[1
]}

Havlin, S

Kantelhardt, JW

Penzel, T

Peter, JH

Voigt, K

机构：

[1] Univ Giessen, Inst Theoret Phys 3, D-35392 Giessen, Germany

[2] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel

[3] Bar Ilan Univ, Gonda Goldschmied Ctr Med Diagnosis, IL-52900 Ramat Gan, Israel

[4] Univ Marburg, Zentrum Innere Med, D-35033 Marburg, Germany

[5] Univ Marburg, Inst Physiol, D-35033 Marburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.85.3736

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Healthy sleep consists of several stages: deep sleep, light sleep, and rapid eye movement (REM) sleep. Here we show that these sleep stages can be characterized and distinguished by correlations of heart rates separated by n beats. Using the detrended fluctuation analysis (DFA) up to fourth order we find that long-range correlations reminiscent to the wake phase are present only in the REM phase. In the non-REM phases, the heart rates are uncorrelated above the typical breathing cycle time, pointing to a random regulation of the heartbeat during non-REM sleep.

引用

页码：3736 / 3739

页数：4

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