Chronic stress in the mother-infant dyad: Maternal hair cortisol, infant salivary cortisol and interactional synchrony.
Chronic stress in the mother-infant dyad: Maternal hair cortisol, infant salivary cortisol and interactional synchrony.
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DOI：
10.1016/j.infbeh.2017.03.007
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发表时间：
2017-05
影响因子：
2.1
通讯作者：
Meyer JS
中科院分区：
文献类型：
--
作者：
Tarullo AR;St John AM;Meyer JS
压力生理学是由早期经验塑造的，对健康有持久的影响。以毛发皮质醇为指标的慢性产妇生理应激与婴儿的应激系统和母婴互动质量的关系尚未确定。我们检测了121对母婴母亲的毛发和唾液皮质醇、6个月大婴儿的唾液皮质醇以及母婴之间的相互作用。母亲毛发皮质醇升高与婴儿唾液皮质醇平均浓度升高有关。母亲头发皮质醇和睡前唾液皮质醇都与婴儿睡前唾液皮质醇有关。头发皮质醇较高的母亲更具侵入性，与婴儿的积极接触同步性较低。母亲的侵入性缓和了母亲头发皮质醇和婴儿唾液皮质醇的关系，因此只有当母亲更具侵入性时，母亲的头发和婴儿的平均唾液皮质醇才相关。母亲的慢性生理应激可能会上调婴儿的发育应激系统，特别是在母婴互动质量较低的背景下。
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.