Jian Ni, Teti Douglas M
Department of Human Development and Family Studies, College of Health and Human Development, The Pennsylvania State University, University Park, PA 16802-6505, USA.
Department of Human Development and Family Studies, College of Health and Human Development, The Pennsylvania State University, University Park, PA 16802-6505, USA.
Sleep Med. 2016 Jul;23:49-58. doi: 10.1016/j.sleep.2016.07.001. Epub 2016 Jul 12.
Infant sleep consolidates rapidly during the first half year of life in the context of a dynamic, bidirectional exchange between infant characteristics and the caregiving environment. The current study examined the relationship between mothers' emotional availability (EA) at bedtime and infant temperament, and objectively assessing infant sleep development from one to six months, particularly focus on whether infant temperament moderated linkages between EA at bedtime and infant sleep development. The sample consisted of 72 mother-infant dyads, and the measures included actigraphy-assessed infant sleep at one and six months, observed maternal EA coded from bedtime videos at 3 and 6 months, and maternal reports of infant temperament at three and six months. The analysis showed significant positive effects of maternal EA at bedtime on developmental changes in infant sleep minutes. Additionally, infant temperamental surgency moderated the influence of EA at bedtime on the increase in infant sleep minutes. In other words, highly surgent infants whose mothers were emotionally available at bedtime showed a greater increase in their sleep time than other infants. The results are discussed in terms of the transactional model of infant sleep development.
在生命的前半年，婴儿睡眠在婴儿特征与照料环境之间动态、双向的交流背景下迅速巩固。本研究考察了母亲在就寝时的情感可用性（EA）与婴儿气质之间的关系，并客观评估了婴儿从1个月到6个月的睡眠发育情况，特别关注婴儿气质是否调节了就寝时的EA与婴儿睡眠发育之间的联系。样本包括72对母婴二元组，测量指标包括通过活动记录仪评估的1个月和6个月时婴儿的睡眠情况、从3个月和6个月就寝时视频中编码的母亲EA观察值，以及3个月和6个月时母亲对婴儿气质的报告。分析表明，母亲就寝时的EA对婴儿睡眠时长的发育变化有显著的积极影响。此外，婴儿的气质活跃度调节了就寝时EA对婴儿睡眠时长增加的影响。换句话说，就寝时母亲情感可用的高度活跃的婴儿比其他婴儿的睡眠时间增加得更多。研究结果依据婴儿睡眠发育的相互作用模型进行了讨论。
