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Complexity of Everyday Life Heart Rate Dynamics and Attentional Control in Healthy Students

机译：健康学生日常生活心律动力学的复杂性和注意控制

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Effective regulation of emotions requires the ability to voluntarily manage attention, i.e. attentional control (AC), which has been related to heart rate variability and vagal tone in laboratory based research. In this study, we calculated the correlation dimension (CD), the fractal-like properties (scaling exponents α1 and α2, and fractal dimension) and the sample entropy of heart rate time series obtained from ECG recordings (4 hours long each) taken from a sample of healthy students (n=47) during everyday activities. AC was assessed through a self-reported questionnaire. As expected, a linear positive correlation was found between AC scores and CD and entropy, but no associations were found between AC and α1 and fractal dimension. The association between AC and α2 was negative and marginally significant. No associations were found between AC and linear heart rate variability measures. These results show that nonlinear measures of long, everyday life, heart rate time series may provide useful information about the AC ability of healthy students.
机译：有效地调节情绪需要自愿管理注意力的能力，即注意力控制（AC），这已在基于实验室的研究中与心率变异性和迷走神经张力有关。在这项研究中，我们计算了相关维数（CD），分形性质（缩放指数α1和α2以及分形维数）以及从心电图记录（每次4小时）获取的心率时间序列的样本熵在日常活动中对健康学生（n = 47）进行抽样。 AC通过自我报告的问卷进行评估。正如预期的那样，在AC得分与CD和熵之间发现线性正相关，但在AC与α1和分形维数之间没有发现关联。 AC和α2之间的关联为负，且略有显着性。在AC和线性心率变异性测度之间未发现关联。这些结果表明，长期，日常生活，心率时间序列的非线性测量可以提供有关健康学生交流能力的有用信息。

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