School of Psychology, National University of Ireland, Galway, Ireland.
Department of Psychology, University of Limerick, Limerick, Ireland.
PLoS One. 2018 Jun 18;13(6):e0199221. doi: 10.1371/journal.pone.0199221. eCollection 2018.
The personality trait openness to experience has been implicated in health, and in particular cardiovascular wellbeing. In a sample of 62 healthy young female adults, the role of openness in cardiovascular responsivity during a stress exposure was examined. Traditionally, methodologies have averaged a stress exposure into a single reading. This may be limited in that it does not consider patterns of cardiovascular adaptation within a stress exposure. Continuous cardiovascular data were reduced to mean 10 second readings, with phases determined through examinations of shifts in responsivity between each 10 second pairing. Analyses revealed a significant linear interaction for openness across the entire exposure for systolic blood pressure, and cardiac output. A significant between-subjects effect for heart rate also emerged. Contrary to their lower counterparts, those highest in openness exhibited an increasingly myocardial hemodynamic response profile throughout the exposure. Comparisons of responsivity suggests adaptive stress response trajectories for those highest in openness. This study also provides evidence that an attenuation of myocardial responsivity may underpin blunted responsivity. This study provides a potential mechanism in reported openness-health associations.
人格特质开放性体验与健康有关，特别是心血管健康。在 62 名健康年轻女性成年人的样本中，研究了开放性在压力暴露期间心血管反应性中的作用。传统上，方法将压力暴露平均为单个读数。这可能是有限的，因为它不考虑压力暴露内心血管适应的模式。连续的心血管数据被简化为平均 10 秒的读数，通过检查每 10 秒对之间的反应性变化来确定相位。分析显示，收缩压和心输出量的开放性在整个暴露过程中存在显著的线性交互作用。心率也出现了显著的受试者间效应。与低开放性者相反，开放性最高的人在整个暴露过程中表现出越来越心肌血液动力学反应特征。反应性的比较表明，开放性最高的人具有适应性的应激反应轨迹。这项研究还提供了证据，表明心肌反应性的衰减可能是反应迟钝的基础。这项研究为报告的开放性与健康之间的关联提供了一个潜在的机制。
