Porges S W
Institute for Child Study, University of Maryland, College Park 20742.
Pediatrics. 1992 Sep;90(3 Pt 2):498-504.
Vagal tone is proposed as a novel index of stress vulnerability and reactivity with applications in all branches of medicine, and with particular value in pediatrics. The paper proposes a model emphasizing the role of the parasympathetic nervous system and particularly the vagus nerve in mediating homeostasis and defining stress. Measurement of cardiac vagal tone is proposed as a method to assess on an individual basis both the stress response and the vulnerability to stress. The method monitors the neural control of the heart via the vagus (ie, vagal tone) as an index of homeostasis. The method provides a standard instrument with statistical parameters that are comparable between patients and throughout the life span. This noninvasive method will allow the assessment of the stressful impact of various clinical treatments on the young infant and permit the identification of individuals with vulnerabilities to stress.
迷走神经张力被认为是压力易感性和反应性的一种新指标，在医学各分支中均有应用，在儿科学中具有特殊价值。本文提出了一个模型，强调副交感神经系统尤其是迷走神经在调节体内平衡和定义压力方面的作用。提出测量心脏迷走神经张力作为一种在个体基础上评估应激反应和压力易感性的方法。该方法通过迷走神经监测心脏的神经控制（即迷走神经张力）作为体内平衡的指标。该方法提供了一种具有统计参数的标准仪器，这些参数在患者之间以及整个生命周期内都是可比的。这种非侵入性方法将允许评估各种临床治疗对幼儿的压力影响，并识别出具有压力易感性的个体。
