母婴二元组中的慢性应激：母亲头发皮质醇、婴儿唾液皮质醇与互动同步性。
Chronic stress in the mother-infant dyad: Maternal hair cortisol, infant salivary cortisol and interactional synchrony.
作者信息
Tarullo Amanda R, St John Ashley Moore, Meyer Jerrold S
机构信息
Department of Psychological and Brain Sciences, Boston University, United States.
Department of Psychological and Brain Sciences, Boston University, United States.
出版信息
Infant Behav Dev. 2017 May;47:92-102. doi: 10.1016/j.infbeh.2017.03.007. Epub 2017 Apr 6.
Stress physiology is shaped by early experience, with enduring effects on health. The relation of chronic maternal physiological stress, as indexed by hair cortisol, to infants' stress systems and to mother-infant interaction quality has not been established. We examined maternal hair and salivary cortisol, six-month-old infants' salivary cortisol, and mother-infant interaction in 121 mother-infant dyads. High maternal hair cortisol was related to higher infant average salivary cortisol concentration. Maternal hair cortisol and bedtime salivary cortisol were both uniquely related to infant bedtime salivary cortisol. Mothers with higher hair cortisol were more intrusive and had lower positive engagement synchrony with their infants. Maternal intrusiveness moderated the association of maternal hair cortisol and infant salivary cortisol, such that maternal hair and infant average salivary cortisol were related only when mothers were more intrusive. Maternal chronic physiological stress may upregulate infants' developing stress systems, particularly in the context of lower mother-infant interaction quality.
应激生理学受到早期经历的塑造，对健康有着持久影响。以头发皮质醇为指标的慢性母体生理应激与婴儿应激系统以及母婴互动质量之间的关系尚未确立。我们对121对母婴进行了研究，检测了母亲的头发和唾液皮质醇、六个月大婴儿的唾液皮质醇以及母婴互动情况。母亲头发皮质醇水平高与婴儿唾液皮质醇平均浓度较高有关。母亲头发皮质醇和就寝时唾液皮质醇均与婴儿就寝时唾液皮质醇存在独特关联。头发皮质醇水平较高的母亲更具侵扰性，与婴儿的积极互动同步性较低。母亲的侵扰性调节了母亲头发皮质醇与婴儿唾液皮质醇之间的关联，即只有当母亲更具侵扰性时，母亲头发皮质醇与婴儿唾液皮质醇平均水平才有关联。母体慢性生理应激可能会上调婴儿正在发育的应激系统，尤其是在母婴互动质量较低的情况下。
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