【摘要】 研究心脏节律与睡眠结构之间的关系。以MIT/BIH睡眠数据库记录的R -R间期为分析对象 ,采用典型的心率变异分析方法以及计算RRI序列的平均频率、搏间自相关系数、LZ复杂度 ,将结果与数据库中睡眠分期标注进行比对。结果显示时域、频域及非线性分析从不同角度、不同程度上反映了心率变异与睡眠分期之间的联系 ,并且有些方法能较好地表达睡眠状态的变迁。本文结果有助于利用多生理参数研究睡眠分期。更多还原

【Abstract】 In order to explore the relationship between cardiac rhythnm and sleep stages,we analyzed R-R interval(RRI) sequences obtained from records in MIT/BIH sleep database. Several typical analysis methods for heart rate variation(HRV)and some other methods include spectral analysis,inter-beat correlation analysis and complexity analysis were adopted,the results were compared with the sleep scoring annotations marked by physiological experts in the sleep database.The results show that time field analysis,frequency field analysis and nonlinear analysis reveal the relationship in different degree between RR intervals and sleep stages from different point of view,some methods well express the change of sleep stages.These results are useful in sleep scoring using multi-parameters.更多还原