Physiological indices of challenge and threat: A data-driven investigation of autonomic nervous system reactivity during an active coping stressor task.

Physiological indices of challenge and threat: A data-driven investigation of autonomic nervous system reactivity during an active coping stressor task.
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挑战和威胁的生理指标:在主动应对压力任务期间自主神经系统反应性的数据驱动调查。

DOI:
10.1111/psyp.13454
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发表时间:
2019
期刊:
影响因子:
3.7
通讯作者:
Quigley,KarenS
Quigley,KarenS
中科院分区:
心理学3区
文献类型:
--
作者:
Wormwood,JolieB;Khan,Zulqarnain;Siegel,Erika;Lynn,SpencerK;Dy,Jennifer;Barrett,LisaFeldman;Quigley,KarenS

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我们利用一种数据驱动的无监督机器学习方法,在两个大型独立数据集的激励性表现背景下检查外周生理反应的模式,每个数据集都有多个外周生理指标。结果显示,通常与激发和威胁状态相关的心血管反应模式是两种样本中外周生理反应的两种主要模式,这两种模式最好通过心输出量、射血前期、心搏间期和总外周阻力的反应性进行区分。然而,我们还确定了第三个,相对较大的一组明显的生理无反应者,他们在动机表现的背景下,在所有生理指标中表现出最小的反应。这组无反应者最好通过皮肤电活动的最小增加与其他人区分开来。我们讨论的影响,识别和表征这第三组个人在未来的研究生理模式的挑战和威胁。
We utilized a data‐driven, unsupervised machine learning approach to examine patterns of peripheral physiological responses during a motivated performance context across two large, independent data sets, each with multiple peripheral physiological measures. Results revealed that patterns of cardiovascular response commonly associated with challenge and threat states emerged as two of the predominant patterns of peripheral physiological responding within both samples, with these two patterns best differentiated by reactivity in cardiac output, pre‐ejection period, interbeat interval, and total peripheral resistance. However, we also identified a third, relatively large group of apparent physiological nonresponders who exhibited minimal reactivity across all physiological measures in the motivated performance context. This group of nonresponders was best differentiated from the others by minimal increases in electrodermal activity. We discuss implications for identifying and characterizing this third group of individuals in future research on physiological patterns of challenge and threat.
皮肤电反应作为量化威胁的函数。
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