Psychology Department (NDSU Dept. 2765), North Dakota State University, PO Box 6050, Fargo, ND 58108-6050, USA.
J Behav Med. 2010 Aug;33(4):282-92. doi: 10.1007/s10865-010-9256-x. Epub 2010 Mar 5.
The purpose of the present study was to examine whether stress-somatic symptom associations may be more pronounced among individuals whose bodies exhibit higher levels of cardiovascular reactivity to a laboratory social stress task. During an initial laboratory session, participants delivered a 5-min speech and individual differences in cardiovascular reactivity were quantified. The same participants subsequently completed a 15-day experience sampling protocol, in which daily levels of stress and somatic symptoms were assessed. Multi-level modeling was used to assess associations among laboratory cardiovascular reactivity, daily stress and somatic symptoms. Daily symptom reports included a set of commonly experienced physical symptoms reflective of general bodily dysfunction. Individuals displaying high levels of laboratory systolic blood pressure reactivity experienced more somatic symptoms on high-stress days, but this was not the case for individuals low in systolic blood pressure reactivity. The results bridge two hitherto distinct health psychology literatures showing that cardiovascular and somatic reactivity to stress are associated. Stress reactivity individual differences in one system may indicate more general differences in bodily reactivity across systems.
本研究旨在探讨个体在实验室社会压力任务中表现出更高水平的心血管反应性时，其压力-躯体症状的关联是否更为显著。在初始的实验室会议期间，参与者进行了 5 分钟的演讲，量化了心血管反应性的个体差异。随后，相同的参与者完成了为期 15 天的体验采样协议，其中每天评估压力和躯体症状的水平。多层次模型用于评估实验室心血管反应性、日常压力和躯体症状之间的关联。每日症状报告包括一组反映一般身体功能障碍的常见身体症状。表现出高水平实验室收缩压反应性的个体在高压力日经历更多的躯体症状，但收缩压反应性低的个体则不然。研究结果连接了两个迄今为止截然不同的健康心理学文献，表明心血管和躯体对压力的反应性是相关的。一个系统中的应激反应个体差异可能表明跨系统的身体反应性存在更普遍的差异。
