Rosebrock Laina, Hoxha Denada, Gollan Jackie
Asher Center for the Study and Treatment of Depressive Disorders, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Asher Center for the Study and Treatment of Depressive Disorders, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Psychiatry Res. 2015 Jun 30;227(2-3):179-84. doi: 10.1016/j.psychres.2015.04.002. Epub 2015 Apr 8.
Reactions to emotional cues, termed affective reactivity, promote adaptation and survival. Shifts in affective reactivity during pregnancy and postpartum may invoke altered responses to environmental and biological changes. The development and testing of affective reactivity tasks, with published normative ratings for use in studies of affective reactivity, has been based on responses provided by healthy college students. A comparison of the healthy norms with ratings provided by peripartum women has yet to be conducted, despite its value in highlighting critical differences in affective reactivity during peripartum phases. This study compared arousal ratings of unpleasant, neutral, pleasant, and threat stimuli from the International Affective Picture System (IAPS; Lang, P.J., Bradley, M.M., Cuthbert, B.N. 2008. International Affective Picture System (IAPS): Affective Ratings of Pictures and Instruction Manual (Technical Report A-8). University of Florida, Gainseville, FL.) between three samples: (a) women measured during pregnancy and again at postpartum, (b) age-matched nonpregnant women, and (c) college-aged women from the normative sample used to test the stimuli. Using mixed-design GLMs, results showed that the pregnant and postpartum women and the age-matched women showed suppressed arousal relative to the college-age women. Additionally, postpartum women showed increased arousal to unpleasant/threat images compared to other types of images. The data suggest that future research on peripartum women should include affective reactivity tasks based on norms reflective of this specific population.
对情绪线索的反应，即情感反应性，有助于适应和生存。孕期和产后情感反应性的变化可能会引发对环境和生物变化的反应改变。情感反应性任务的开发和测试以及已发表的用于情感反应性研究的标准评分，都是基于健康大学生提供的反应。尽管将健康标准与围产期女性提供的评分进行比较对于突出围产期情感反应性的关键差异具有重要价值，但尚未进行。本研究比较了来自国际情感图片系统（IAPS；Lang，P.J.，Bradley，M.M.，Cuthbert，B.N. 2008. 国际情感图片系统（IAPS）：图片情感评分及使用手册（技术报告A - 8）。佛罗里达大学，盖恩斯维尔，佛罗里达州）中不愉快、中性、愉快和威胁性刺激的唤醒评分，样本包括：（a）孕期测量一次且产后再次测量的女性，（b）年龄匹配的未孕女性，以及（c）用于测试刺激的标准样本中的大学生年龄女性。使用混合设计广义线性模型，结果显示孕期和产后女性以及年龄匹配的女性相对于大学生年龄女性表现出唤醒抑制。此外，与其他类型的图像相比，产后女性对不愉快/威胁性图像表现出更高的唤醒。数据表明，未来对围产期女性的研究应包括基于反映该特定人群标准的情感反应性任务。
