Quantifying the dynamic nature of vagal responsivity in infancy: Methodological innovations and theoretical implications.
Quantifying the dynamic nature of vagal responsivity in infancy: Methodological innovations and theoretical implications.
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DOI：
10.1002/dev.22018
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发表时间：
2021-04
影响因子：
2.2
通讯作者：
Luecken LJ
中科院分区：
文献类型：
--
作者：
Somers JA;Curci SG;Luecken LJ
根据多迷走神经理论，迷走神经制动的快速调节在婴儿早期发展，并支持社会互动。尽管被视为一个动态系统，研究人员通常使用呼吸性窦性心律失常（RSA;迷走神经张力指数）的整体措施来评估迷走神经调节。本研究试图捕捉RSA的动态特性，并评估在母婴互动过程中婴儿内RSA反应的个体差异。RSA进行了评估，在135个6个月大的墨西哥裔美国婴儿在一个5分钟的自由发挥任务的样本。母亲们使用简短的婴幼儿社会和情感评估报告了他们18个月大的孩子的行为问题和能力。使用多窗口技术和频谱图分析获得了婴儿RSA在相互作用过程中随时间变化的估计。使用结构方程模型，在调整婴儿的平均RSA和协变量后，我们评估了RSA的婴儿内SD是否可以预测婴儿18个月时的行为问题和能力。RSA的婴儿内SD越大，18个月时的行为问题越多。这项研究表明，评估RSA的个体内变异性，或婴儿在任务期间在其RSA平均水平附近波动的程度，增强了我们测试多迷走神经理论的中心原则的能力：迷走神经调节支持良好的社会互动。
According to polyvagal theory, rapid modulation of the vagal brake develops early in infancy and supports social interactions. Despite being viewed as a dynamic system, researchers typically assess vagal regulation using global measures of respiratory sinus arrhythmia (RSA; an index of vagal tone). This study sought to capture the dynamic property of RSA and evaluate individual differences in within-infant RSA responsivity during mother-infant interaction. RSA was evaluated in a sample of 135 6-month-old Mexican-American infants during a 5-min free play task. Mothers reported on their children’s behavioral problems and competence at 18 months using the Brief Infant-Toddler Social and Emotional Assessment. Time-varying estimates of infant RSA during the interaction were obtained using a multiple window technique and spectrogram analysis. Using structural equation modeling, we evaluated whether within-infant SD of RSA predicted infants’ behavioral problems and competence at 18 months, after adjusting for infants’ mean RSA and covariates. Greater within-infant SD of RSA predicted more behavior problems at 18 months. This study demonstrates that assessing intra-individual variability in RSA, or the extent to which infants fluctuate around their average level of RSA during a task, enhances our ability to test polyvagal theory’s central tenet: vagal regulation supports well-regulated social interaction.
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影响因子：
3
作者：
Gruber, June;Mennin, Douglas S.;Murray, Greg
通讯作者：
Murray, Greg
DOI：
10.1080/15374416.2019.1622122
发表时间：
2019-06-21
影响因子：
4.2
作者：
Somers, Jennifer A.;Curci, Sarah G.;Luecken, Linda J.
通讯作者：
Luecken, Linda J.
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影响因子：
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