Sgoifo Andrea, Braglia Francesca, Costoli Tania, Musso Ezio, Meerlo Peter, Ceresini Graziano, Troisi Alfonso
Department of Evolutionary and Functional Biology, University of Parma, Parco Area delle Science 11/A, Parma, Italy.
Neurosci Biobehav Rev. 2003 Jan-Mar;27(1-2):179-88. doi: 10.1016/s0149-7634(03)00019-8.
The degree of cardiovascular stress responsivity and its possible implications for the onset and progression of cardiovascular pathologies seem to be linked to the individual strategy of behavioral coping with stressors. This study was designed to investigate the relationship among cardiac autonomic, endocrine and behavioral responses to real-life stress episodes. Thirty university students were exposed to two brief social challenges (stress interviews), during which the state of sympathovagal balance (time-domain indexes of heart rate variability) and a number of non-verbal behaviors were quantified. Psychometric measurements were also obtained via SPRAS questionnaire, administered just after each stress interview. Samples of saliva were collected for cortisol determination immediately prior and after the experimental session. Subjects showing higher levels of sympathetic dominance were characterized by higher scores of submissive behavior, larger cortisol increments, and higher perception of psychophysiological arousal. A clear consistency in the individual response to the two stress interviews was found, at the behavioral, physiological and psychophysiological level. Finally, the gender of the subjects did not clearly influence their stress responsivity. These results support the hypothesis of a close relationship between the degree of physiological arousal and the style of behavioral adaptation to social stressors.
心血管应激反应的程度及其对心血管疾病发生和发展的可能影响，似乎与个体应对压力源的行为策略有关。本研究旨在调查心脏自主神经、内分泌和行为对现实生活中应激事件的反应之间的关系。30名大学生接受了两次简短的社交挑战（应激访谈），在此期间，对交感迷走神经平衡状态（心率变异性的时域指标）和一些非言语行为进行了量化。每次应激访谈后，还通过SPRAS问卷进行了心理测量。在实验 session 之前和之后立即收集唾液样本用于皮质醇测定。表现出较高交感神经优势水平的受试者，其特点是顺从行为得分较高、皮质醇增量较大以及对心理生理唤醒的感知较高。在行为、生理和心理生理水平上，发现个体对两次应激访谈的反应具有明显的一致性。最后，受试者的性别并未明显影响他们的应激反应性。这些结果支持了生理唤醒程度与对社会压力源的行为适应方式之间存在密切关系的假设。
