使用递归特性估计心肺系统中的耦合方向
Estimating coupling directions in the cardio-respiratory system using recurrence properties
摘要：
复杂系统之间耦合的不对称性可以通过条件递归概率来研究，条件递归概率可以通过联合递归图来估计。这种方法首次应用于实验数据：时间序列的人体心肺系统，以研究心率，平均动脉血压和呼吸之间的耦合。我们发现呼吸系统与心率耦合，心率与平均动脉血压耦合。然而，我们的分析不能检测到一个明确的平均动脉血压和呼吸之间的耦合方向。
英文摘要：
The asymmetry of coupling between complex systems can be studied by conditional probabilities of recurrence, which can be estimated by joint recurrence plots. This approach is applied for the first time on experimental data: time series of the human cardio-respiratory system in order to investigate the couplings between heart rate, mean arterial blood pressure, and respiration. We find that the respiratory system couples towards the heart rate and the heart rate towards the mean arterial blood pressure. However, our analysis could not detect a clear coupling direction between the mean arterial blood pressure and respiration.
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