Ecologically salient stressors and supports and the coordination of cortisol and salivary alpha-amylase in mothers and infants.
Ecologically salient stressors and supports and the coordination of cortisol and salivary alpha-amylase in mothers and infants.
复制标题
母亲和婴儿体内皮质醇和唾液α-淀粉酶的生态显着压力源和支持及协调。
DOI：
10.1016/j.physbeh.2018.07.024
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发表时间：
2018
影响因子：
2.9
通讯作者：
Buhler-Wassmann,AndreaC
中科院分区：
文献类型：
--
作者：
Hibel,LeahC;Trumbell,JillM;Valentino,Kristin;Buhler-Wassmann,AndreaC
本研究探讨整合的两个主要分支的应激反应系统：自主神经系统（通过唾液α-淀粉酶，sAA）和下丘脑-垂体-肾上腺轴（通过皮质醇）。母亲（n= 117）被随机分为积极（n= 57）或冲突（n= 60）与他们的婚姻伴侣的讨论，之后母亲和婴儿（法师= 5.9个月）从事自由发挥，然后是婴儿为重点的挑战任务。从母亲收集唾液样本以评估生理反应和对婚姻讨论的恢复，并从婴儿收集唾液样本以评估生理反应和对挑战任务的恢复。对于母亲和婴儿来说，sAA -皮质醇协调在各自的任务中各不相同。此外，研究结果表明，sAA -皮质醇的联系是在社会控制下，压力反应系统的协调只发生在支持性的社会关系中（即，母亲经历了有凝聚力的婚姻讨论，以及在婴儿与敏感和响应母亲）。然而，有趣的是，社会支持在母亲和婴儿中的作用似乎不同。研究结果推进了我们对社会关系背景下压力生理学复杂整合的理解。
This study examines the integration of the two main branches of the stress response system: the autonomic nervous system (via salivary alpha-amylase, sAA) and the hypothalamic-pituitary-adrenal axis (via cortisol). Mothers (n= 117) were randomized to have either a positive (n= 57) or conflictual (n= 60) discussion with their marital partner, after which mothers and infants (Mage= 5.9 months) engaged in free-play, followed by an infant-focused challenge task. Saliva samples were collected from the mother to assess physiological reactivity and recovery to the marital discussion, and from the infant to assess physiological reactivity and recovery to the challenge task. For both mothers and infants, sAA – cortisol coordination varied across the respective tasks. Further, findings suggest the sAA – cortisol connection is under social control, with stress response system coordination occurring only in supportive social relationships (i.e., mothers experiencing cohesive marital discussions, and in infants with sensitive and responsive mothers). Interestingly, however, it appears social support might function differently in mothers vs infants. Findings advance our understanding of the complex integration of stress physiology in the context of social relationships.