Statistical strategies to quantify respiratory sinus arrhythmia: are commonly used metrics equivalent?

Statistical strategies to quantify respiratory sinus arrhythmia: are commonly used metrics equivalent?
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DOI:
10.1016/j.biopsycho.2011.11.009
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发表时间:
2012-02
影响因子:
2.6
通讯作者:
Porges, Stephen W.
Porges, Stephen W.
中科院分区:
医学3区
文献类型:
--
作者:
Lewis, Gregory F.;Furman, Senta A.;McCool, Martha F.;Porges, Stephen W.

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调查了三个常用的RSA指标,以记录对参数分析假设的违反、呼吸的缓和、非平稳性的影响以及对迷走神经阻断的敏感性。尽管所有指标都高度相关,但新的发现表明,这些指标在上述维度上存在显著差异。只有一种方法符合参数分析的假设,不受呼吸的影响,不受非平稳性的影响,并且可靠地产生更强的影响大小。此外,这种方法对迷走神经阻断也是最敏感的。此方法的特定功能可以为改进其他常用RSA指标的统计特征提供见解。根据统计依据,这些数据为使用RSA的特定指标发布的报告提供了质疑的证据。
Three frequently used RSA metrics are investigated to document violations of assumptions for parametric analyses, moderation by respiration, influences of nonstationarity, and sensitivity to vagal blockade. Although all metrics are highly correlated, new findings illustrate that the metrics are noticeably different on the above dimensions. Only one method conforms to the assumptions for parametric analyses, is not moderated by respiration, is not influenced by nonstationarity, and reliably generates stronger effect sizes. Moreover, this method is also the most sensitive to vagal blockade. Specific features of this method may provide insights into improving the statistical characteristics of other commonly used RSA metrics. These data provide the evidence to question, based on statistical grounds, published reports using particular metrics of RSA.
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