a Faculty of Health and Life Sciences, Department of Psychology, Health in Action: Stress Research Group , Northumbria University , Newcastle upon Tyne , UK.
Psychol Health. 2014;29(10):1156-75. doi: 10.1080/08870446.2014.915970. Epub 2014 May 14.
Previous research investigating the influence of Type D personality on cardiovascular reactivity to stress in healthy young adults is somewhat mixed. The present study sought to investigate this question using an ecologically valid laboratory stressor. Beat-to-beat blood pressure and heart rate were measured in 77 healthy young adults during exposure to multitasking stress. Mood and background stress were both associated with Type D personality when Type D was conceptualised as a dimensional construct, with less robust findings observed using the traditional dichotomous typological approach. However, the continuous Type D construct added limited predictive value of the self-report measures above that of its constituent components, negative affectivity (NA) and social inhibition (SI). Further, an inverse relationship between the continuous Type D construct and blood pressure reactivity to multitasking stress was observed. In summary, our findings suggest that Type D personality is predictive of blunted cardiovascular reactivity to stress in healthy individuals when Type D is considered as a dimensional construct and the independent influence of NA and SI is controlled for. Further, our findings suggest that Type D does not predict additional variance in mood and background stress above that of NA and SI when these constituent factors are considered independently.
先前的研究调查了 D 型人格对健康年轻成年人应激心血管反应性的影响，但结果有些混杂。本研究试图使用一种生态有效的实验室应激源来研究这个问题。在暴露于多任务应激时，77 名健康的年轻成年人的心率和血压被实时测量。当 D 型人格被概念化为一种维度结构时，心境和背景压力都与 D 型人格有关，而使用传统的二分类型学方法则观察到不那么稳健的结果。然而，连续型 D 型结构在自我报告测量中增加的预测价值有限，超过了其组成部分，即消极情感（NA）和社交抑制（SI）。此外，还观察到连续型 D 型结构与多任务应激时血压反应性之间呈反比关系。总之，当 D 型人格被视为一种维度结构并控制 NA 和 SI 的独立影响时，我们的研究结果表明，D 型人格与健康个体对压力的心血管反应迟钝有关。此外，当独立考虑这些组成因素时，D 型人格并不能预测心境和背景压力方面的额外变化，超过了 NA 和 SI。
