Frances L. Hiatt School of Psychology, Clark University, Worcester, MA, USA.
Frank Porter Graham Child Development Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Infant Behav Dev. 2020 Aug;60:101464. doi: 10.1016/j.infbeh.2020.101464. Epub 2020 Jul 7.
Parents in the United States increasingly report bed-sharing with their infants (i.e., sleeping on a shared sleep surface), but the relationship between bed-sharing and child socioemotional outcomes are not well understood. The current study examines the links between mother-infant bed-sharing at 3 months and infant affect and behavior during a dyadic challenge task at 6 months. Further, we examine nighttime mother-infant contact at 3 months as a possible mechanism that may mediate linkages between bed-sharing and infant outcomes. Using observational data from a sample of 63 mother-infant dyads, we found that infants who bed-shared for any proportion of the observation period at 3 months displayed significantly more self-regulatory behaviors during the still-face episode of the Still-Face Paradigm (SFP) at 6 months, compared to non-bed-sharing infants. Also, infants of mothers who bed-shared for the entire observation period displayed significantly less negativity during the reunion episode than non-bed-sharing infants. There was no evidence that the relations between mother-infant bed-sharing practices and infant affect and behavior during the SFP were mediated through nighttime mother-infant contact. Results suggest that infant regulation at 6 months postpartum may vary based on early nighttime experiences, with bed-sharing potentially promoting more positive and well-regulated behavior during dyadic interaction.
美国的父母越来越多地报告与他们的婴儿同床共枕（即睡在同一张床上），但人们对同床共枕与儿童社会情感结果之间的关系还不太了解。本研究考察了 3 个月时母婴同床和 6 个月时母婴在双人挑战任务中的婴儿情绪和行为之间的联系。此外，我们还研究了 3 个月时夜间母婴接触作为一种可能的中介机制，这种机制可能会调节母婴同床与婴儿结果之间的联系。本研究使用了来自 63 对母婴样本的观察数据，结果发现，与非母婴同床的婴儿相比，在 3 个月的观察期间有任何比例的母婴同床的婴儿在 6 个月的“静止脸”范式（SFP）中的静止脸期表现出更多的自我调节行为。此外，在重聚期，与非母婴同床的婴儿相比，母婴同床的婴儿的母亲在整个观察期内的母婴同床的婴儿的消极性明显较少。没有证据表明母婴同床习惯与婴儿在 SFP 中的情绪和行为之间的关系是通过夜间母婴接触来调节的。研究结果表明，婴儿在产后 6 个月时的调节能力可能因早期夜间体验而异，母婴同床可能会促进在双人互动中表现出更积极和更有规律的行为。
