Can newborns discriminate between their own cry and the cry of another newborn infant?
Can newborns discriminate between their own cry and the cry of another newborn infant?
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DOI：
10.1037/0012-1649.35.2.418
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发表时间：
1999-03-01
影响因子：
4
通讯作者：
Caltran, G
中科院分区：
文献类型：
--
作者：
Dondi, M;Simion, F;Caltran, G
研究人员进行了两项实验，以测试新生儿是否能够辨别自己的哭声和其他新生儿的哭声。以面部行为和非营养性吸奶率为依从性指标。在实验1中，20名处于清醒状态的新生儿被呈现出他们自己的哭声或另一个婴儿的哭声。在后一种情况下，新生儿表现出痛苦的面部表情更频繁，持续时间更长。此外，从前测阶段到出现另一个婴儿哭声的第一分钟，吸奶率显著下降。新生儿的反应虽然延迟和不那么强烈，但在实验2中显示出类似的趋势，在实验2中，20名处于睡眠状态的新生儿接受了同样的程序测试。这些结果表明，新生儿有能力区分两种哭声刺激，并表明新生儿哭声在诱导另一个新生儿的痛苦信号方面的有效性。
Two experiments were conducted to test whether newborns could discriminate between their own cry and the cry of another newborn infant. Facial behavior and nonnutritive sucking rate were adopted as dependent measures. In Experiment 1, 20 newborns in an awake state were presented with either their own cry or the cry of another infant. In the latter condition, newborns showed the facial expression of distress more frequently and for a longer duration. In addition, the rate of sucking decreased significantly between the pretest phase and the Ist min of presentation of another infant's cry. Newborns' responses, although delayed and less intense, showed a similar trend in Experiment 2, during which 20 newborns in a sleep state were tested with the same procedure. These results indicate the newborns' capability to discriminate between the 2 cry stimuli and show the effectiveness of a newborn cry in inducing distress signals in another newborn infant.