Philbrook Lauren E, Teti Douglas M
Department of Human Development and Family Studies, Auburn University, Auburn, Alabama.
Department of Human Development and Family Studies, The Pennsylvania State University, University Park, Pennsylvania.
Dev Psychobiol. 2016 Dec;58(8):1087-1100. doi: 10.1002/dev.21442. Epub 2016 Jul 1.
We examined how maternal care within the bedtime and nighttime contexts influences infant cortisol levels and patterning. Eighty-two mothers (M = 29.4 years) and infants participated in a longitudinal study when infants were 3, 6, and 9 months old. At each time point, bedtime and nighttime parenting were recorded and infant cortisol at bedtime and the following morning was analyzed. Multilevel model analyses showed that infants had lower cortisol levels when mothers were more emotionally available at bedtime, and infants whose mothers responded more often to their non-distressed cues had lower cortisol levels on average. Less co-sleeping and more maternal responses to infant distress were linked to healthier cortisol patterning. By shedding light on parenting qualities and behaviors that influence infant cortisol, these results indicate avenues for intervention and suggest the utility of studying parenting in infant sleep contexts.
我们研究了睡前和夜间环境下的母亲照料如何影响婴儿的皮质醇水平和模式。八十二位母亲（平均年龄M = 29.4岁）及其婴儿参与了一项纵向研究，研究对象为3个月、6个月和9个月大的婴儿。在每个时间点，记录睡前和夜间的育儿情况，并分析婴儿睡前和次日早晨的皮质醇水平。多层次模型分析表明，当母亲在睡前更能给予情感支持时，婴儿的皮质醇水平较低，并且母亲更频繁回应婴儿非苦恼信号的婴儿平均皮质醇水平较低。较少的同床睡眠以及母亲对婴儿苦恼更多的回应与更健康的皮质醇模式相关。通过揭示影响婴儿皮质醇的育儿品质和行为，这些结果指明了干预途径，并表明了在婴儿睡眠环境中研究育儿方式的实用性。
