Correlates of an Adaptive Mother-Infant Relationship

描述（由申请人提供）：这项纵向描述性研究的目的是研究早产儿在产后4个月的心率变异性（HRV）和适应性喂养行为的模式和媒介。本研究旨在探讨：(a)婴儿HRV、婴儿适应喂养行为和母亲适应喂养行为在特殊护理幼儿出院前和1、4个月时的变化规律；(b)检验母亲喂养行为的适应性对HRV的贡献以及婴儿喂养行为、婴儿生理状况和母亲抑郁症状的适应性的中介作用；(c)探讨母亲互动喂养行为适应性对婴儿喂养行为适应性和HRV的纵向影响。64名早产儿及其母亲将作为方便样本参与本研究。将使用动态心电图仪收集HRV数据，并通过频谱分析将其分解为副交感神经成分。录像喂养互动将使用亲子早期关系评估进行分析。母亲的抑郁症状将根据流行病学研究中心抑郁量表进行评估。用新生儿健康指数来评估婴儿的生理状况。回归分析将用于解决研究的目的。

DESCRIPTION (provided by applicant): The purpose of this longitudinal, descriptive study is to examine, for premature infants, patterns and mediators of heart rate variability (HRV) and adaptive feeding behavior through the first 4 post-term months. The study aims are to explore: (a) the pattern of change of infant HRV, infant adaptive feeding behavior, and mother adaptive feeding behavior just before discharge from the special-care nursery and at I and 4 months; (b) examine the mediating effect of the adaptiveness of mothers' feeding behavior on the contribution to HRV and to the adaptiveness of the infant's feeding behavior, of infant biologic condition, and mothers' depressive symptoms; and (c) explore the longitudinal effect of the adaptiveness of mothers' interactive feeding behavior on the adaptiveness of infant feeding behavior and HRV. A convenience sample of 64 premature infants and their mothers will participate in this study. A Holter monitor will be used to collect HRV data, which will be decomposed into parasympathetic components with spectral analysis. Videotaped feeding interactions will be analyzed using the Parent Child Early Relational Assessment. Mothers' depressive symptoms will be assessed with the Center for Epidemiological Studies- Depression Scale. Infant biologic condition will be estimated with the Neonatal Health Index. Regression analysis will be used to address the study aims.