Florida Atlantic University, 5353 Parkside Drive, Jupiter, FL 33458, USA.
Biol Psychol. 2012 Feb;89(2):374-81. doi: 10.1016/j.biopsycho.2011.11.011. Epub 2011 Dec 9.
The purpose of the present study was to examine newborns' behavioral and physiological reactions to the cry of another infant (labeled a reactive cry). 101 newborns of depressed (N=40) and non-depressed (N=61) mothers were assessed on the Brazelton Neonatal Behavioral Assessment Scale (NBAS, Brazelton and Nugent, 1995) and 89 of those infants also participated in an auditory task. Cardiovascular activity (heart period, parasympathetic tone, and recovery to basal activity) was obtained from a sub-sample of these infants (n=37). Vocal distress and regulatory behaviors were examined when newborns listened to another infant's cry and to a simulated sound (the control condition). ANOVAs indicated that newborns of depressed mothers showed lower basal parasympathetic tone. In addition, newborns of depressed mothers responded with less vocal distress to the cry sounds of another infant, and were delayed in physiological regulation following this sound. These findings suggest that newborns of depressed mothers show altered, possibly dysregulated, behavioral and physiological patterns during socio-emotional situations in comparison to newborns of non-depressed mothers.
本研究旨在探讨新生儿对另一个婴儿哭声（称为反应性哭声）的行为和生理反应。对 40 名抑郁母亲和 61 名非抑郁母亲的 101 名新生儿进行了 Brazelton 新生儿行为评估量表（NBAS，Brazelton 和 Nugent，1995）评估，其中 89 名婴儿还参加了听觉任务。从这些婴儿的子样本中获得心血管活动（心率、副交感神经张力和恢复到基础活动）（n=37）。当新生儿听到另一个婴儿的哭声和模拟声音（对照条件）时，检查了发声痛苦和调节行为。方差分析表明，抑郁母亲的新生儿基础副交感神经张力较低。此外，抑郁母亲的新生儿对另一个婴儿哭声的发声痛苦反应较少，并且在这种声音之后生理调节延迟。这些发现表明，与非抑郁母亲的新生儿相比，抑郁母亲的新生儿在社会情感情境中表现出改变的、可能失调的行为和生理模式。
