Department of Psychology, University of Oregon, Eugene, OR 97403-1227, USA.
Infant Behav Dev. 2010 Dec;33(4):530-44. doi: 10.1016/j.infbeh.2010.07.005. Epub 2010 Aug 19.
This study examined associations between interparental relationship dynamics and vagus system functioning in infancy. The functioning of the vagus system, part of the parasympathetic nervous system, indexes emotional reactivity and regulation. Interparental avoidance and dyadic adjustment constitute the focus of this study in order to bring attention to relationship dynamics not subsumed under overt conflict. Infants' baseline vagal tone and change in vagal tone in response to a novel toy were assessed at 5 months in a sample of high-risk mother-infant dyads (n=77). Maternal report of interparental avoidance demonstrated an association with infants' baseline vagal tone, while interparental dyadic adjustment was associated with change in infants' vagal tone from baseline to the novel toy. Infant gender moderated these associations. Maternal sensitivity did not mediate interparental relationship dynamics and infants' vagal functioning. Results are discussed in the context of emotional security theory.
本研究考察了婴儿期父母间关系动态与迷走神经系统功能之间的关联。迷走神经系统是自主神经系统的一部分，它反映了情绪反应和调节能力。本研究的重点是父母间的回避和对偶调节，以引起对未包含在明显冲突中的关系动态的关注。在一个高危母婴对的样本中（n=77），在 5 个月大时评估婴儿的基础迷走神经张力和对新奇玩具的迷走神经张力变化。母亲报告的父母间回避与婴儿的基础迷走神经张力有关，而父母对偶调节与婴儿从基线到新奇玩具的迷走神经张力变化有关。婴儿的性别调节了这些关联。母亲的敏感性并不能调节父母间关系动态与婴儿的迷走神经功能。研究结果在情感安全理论的背景下进行了讨论。
