This study investigated the possible psychophysiological links between conscientiousness and perceived physical symptoms by examining the mediating role of life events stress and the moderating role of resting respiratory sinus arrhythmia (RSA). Participants participated in the collection of questionnaire data and physiological data (N = 396). Results showed life events stress mediated the association between conscientiousness and perceived physical symptoms, and the indirect effect was only significant among individuals with lower resting RSA. Findings indicate that low resting RSA as a risk-amplifying physiological marker may magnify the relationship that low conscientiousness affects physical symptoms by increasing life events stress.

本研究通过检查生活事件压力的中介作用和静息性呼吸性窦性心律失常 (RSA) 的调节作用，调查了尽责性和感知的身体症状之间可能存在的心理生理联系。参与者参与了问卷数据和生理数据的收集（N  = 396）。结果表明，生活事件压力介导了责任心与感知身体症状之间的关联，并且间接影响仅在静息 RSA 较低的个体中显着。研究结果表明，低静息 RSA 作为风险放大的生理标志物可能会放大低责任心通过增加生活事件压力来影响身体症状的关系。