Department of Human Development and Family Studies, 203 Spidle Hall, Auburn University, Auburn, AL 36849-5214, USA.
Physiol Behav. 2012 Oct 10;107(3):414-7. doi: 10.1016/j.physbeh.2012.07.005. Epub 2012 Jul 27.
We examined the association between preschoolers' (N=29; 20 boys; M age = 3.99 years, SD=.69) daytime parasympathetic nervous system (PNS) activity indexed by respiratory sinus arrhythmia (RSA) and their nighttime sleep. Children's baseline RSA was assessed in the laboratory. Sleep was monitored for seven consecutive nights at the child's home via actigraphy and the following sleep parameters were derived: sleep minutes, sleep activity index and sleep efficiency. Regression analyses showed that after controlling for potential confounds, higher RSA was a predictor of lower sleep activity and higher sleep efficiency. Results highlight the importance of physiological regulation for the sleep of healthy preschool children.
我们研究了学龄前儿童（N=29；20 名男孩；平均年龄=3.99 岁，标准差=.69）日间副交感神经系统（PNS）活动与夜间睡眠之间的关系，该活动由呼吸窦性心律失常（RSA）来指标化。儿童的基础 RSA 在实验室中进行评估。通过活动记录仪连续七天在家中监测儿童的睡眠，得出以下睡眠参数：睡眠分钟数、睡眠活动指数和睡眠效率。回归分析表明，在控制潜在混杂因素后，较高的 RSA 是睡眠活动较低和睡眠效率较高的预测因子。研究结果强调了生理调节对健康学龄前儿童睡眠的重要性。
