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足月后前4个月的心率变异性(HRV)和适应性喂养行为的模式和中介。本研究的目的是探索：(A)婴儿出院前、1个月和4个月时婴儿HRV、婴儿适应喂养行为和母亲适应喂养行为的变化规律；(B)母亲喂养行为适应性对婴儿喂养行为贡献、婴儿喂养行为适应性、婴儿生物学状况和母亲抑郁症状适应性的中介作用；(C)母亲交互喂养行为适应性对婴儿喂养行为和HRV适应性的纵向影响。早产儿及其母亲的方便样本将参与这项研究。将使用Holter监护仪收集HRV数据，并通过频谱分析将其分解为副交感神经成分。录像带中的喂养互动将使用亲子早期关系评估进行分析。母亲的抑郁症状将用流行病学研究中心抑郁量表进行评估。婴儿的生物学状况将用新生儿健康指数进行评估。将使用回归分析来解决研究目标。

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.