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首页> 外文期刊>Developmental psychobiology. >Short-term stability of physiological measures in kindergarten children: Respiratory sinus arrhythmia, heart period, and cortisol.
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Short-term stability of physiological measures in kindergarten children: Respiratory sinus arrhythmia, heart period, and cortisol.

机译：幼儿园儿童的生理措施的短期稳定性：呼吸窦性心律不齐，心脏周期和皮质醇。

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The short-term stability of measures of respiratory sinus arrhythmia (RSA), heart period, and salivary cortisol and the relation of these variables to one another and to measures of social competence in kindergartners were examined. Physiological measures were collected during multiple individual sessions with 30 kindergarten children, ages 5 to 6 years. Three sessions were scheduled at 2-week intervals and included a negative affect task as a challenge. Cardiovascular and cortisol responses to the challenge were assessed. Results indicated that baseline measures of RSA and heart period were stable across time. Baseline cortisol levels were not stable. The change in RSA in response to a task that elicited emotional responses was not stable over time. Consistent with findings observed in adults and older children, changes in RSA were related to the cortisol response. Children who increased cortisol over the course of Session 1 exhibited larger decreases in RSA than children who did not show increased cortisol levels. In addition, the children who had larger decreases in RSA had higher ratings of sociability on the Colorado Childhood Temperament Inventory. Greater decreases in heart period during the task were associated with lower ratings of shyness. The relation of RSA measures to ratings of social competence supports the Polyvagal Theory (Porges, 1995, 2001), which suggests that the ability to engage and disengage with objects and people in one's environment, necessary for social competence, is related to the regulation of vagal control of the heart.
机译：检验了呼吸道窦性心律不齐（RSA），心脏周期和唾液皮质醇的测量方法的短期稳定性，以及这些变量之间的关系以及幼儿园的社会能力的测量方法。在30个5至6岁的幼儿园儿童的多个单独会议中收集了生理指标。每两周安排一次三节课，其中包括一项负面影响任务。评估了对挑战的心血管和皮质醇反应。结果表明，RSA和心脏周期的基线测量值随时间推移保持稳定。基线皮质醇水平不稳定。随着时间的流逝，RSA响应于引起情绪反应的任务而变化。与在成人和大龄儿童中观察到的发现一致，RSA的变化与皮质醇反应有关。与未显示皮质醇水平升高的儿童相比，在第1阶段中皮质醇升高的儿童的RSA降低幅度更大。此外，在科罗拉多州儿童气质量表上，RSA下降幅度较大的孩子的社交能力等级较高。任务期间心脏周期的较大减少与较低的害羞度相关。 RSA测度与社会能力等级之间的关系支持了多元性理论（Porges，1995，2001），该理论表明，社会能力所必需的与对象和人在环境中接触和脱离的能力与对个体能力的调节有关。迷走神经控制心脏。

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