CARDIAC ACTIVITY IN INFANCY - RELIABILITY AND STABILITY OF INDIVIDUAL-DIFFERENCES
CARDIAC ACTIVITY IN INFANCY - RELIABILITY AND STABILITY OF INDIVIDUAL-DIFFERENCES
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DOI：
10.1016/0163-6383(94)90006-x
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发表时间：
1994-07-01
影响因子：
2.1
通讯作者：
ROSENBERG, AA
中科院分区：
文献类型：
--
作者：
FRACASSO, MP;PORGES, SW;ROSENBERG, AA
本研究的目的是检查：（a）心动周期和心脏迷走神经张力的规范性发育变化;（B）两项测量中个体差异随时间的可靠性和稳定性。 当参与这项短期纵向研究的73名婴儿分别为5个月、7个月、10个月和13个月时，当婴儿安静、专注地坐在母亲的腿上时，收集了5分钟的心脏活动样本。 第二个5分钟的心脏活动样本也收集在7个月，10个月和13个月后，20分钟长的电池的情绪引发的刺激。 在心动周期中观察到显着的发育增加，但在心脏迷走神经张力的测量中没有观察到。 在情绪诱发刺激结束后，观察到与压力相关的心脏迷走神经张力降低和心率增加。 个体差异的措施，心脏周期和心脏迷走神经张力稳定超过2个月和3个月的时间。
The goals of this study were to examine: (a) normative developmental changes in heart period and cardiac vagal tone; and (b) the reliability and stability over time of individual differences in the two measures. When the 73 infants participating in this short-term longitudinal study were 5, 7, 10, and 13 months old, a 5-min sample of cardiac activity was collected while the infants sat on their mothers' laps in a quiet, attentive state. A second 5-min sample of cardiac activity was also collected at 7, 10, and 13 months following a 20-min long battery of emotion-eliciting stimuli. Significant developmental increases were observed in heart period but not in the measure of cardiac vagal tone. Stress-related decreases in cardiac vagal tone and increases in heart rate were observed after the emotion-eliciting stimuli ended. Individual differences in measures of heart period and cardiac vagal tone were stable over 2- and 3-month periods.