Human Development and Quantitative Methodology, University of Maryland, Benjamin Building, RM 1108A, 3942 Campus Dr., College Park, MD, 20742, USA.
Department of Psychology, UC Davis, 267 Cousteau Place, Davis, CA, 95618, USA.
J Abnorm Child Psychol. 2018 Oct;46(7):1439-1450. doi: 10.1007/s10802-017-0374-6.
Callous-unemotional (CU) traits are one meaningful risk factor which helps to explain heterogeneity in the emergence of externalizing behavior problems. While the extant literature demonstrates links between early CU traits and later externalizing problems, there is a dearth of research examining for whom early CU traits confer risk. Data from a longitudinal study (n = 108) were used to examine the extent to which parasympathetic functioning moderated links between CU traits in toddlerhood (m = 24.99 months) and externalizing behavior problems at preschool-age (m = 51 months). Neither CU traits nor parasympathetic functioning at age 2 directly predicted later externalizing behaviors. However, results show that high levels of CU traits predict elevated externalizing behavior problems, but only for toddlers exhibiting either high baseline respiratory sinus arrhythmia (RSA) or little to no RSA suppression in response to a fear stimulus.
冷酷无情（CU）特征是一个有意义的风险因素，可以帮助解释外化行为问题的异质性。虽然现有文献表明早期 CU 特征与后来的外化问题之间存在联系，但很少有研究探讨哪些人具有早期 CU 特征的风险。本研究使用一项纵向研究的数据（n = 108），考察了副交感神经功能在多大程度上调节了幼儿期（m = 24.99 个月）CU 特征与学前期（m = 51 个月）外化行为问题之间的联系。2 岁时的 CU 特征和副交感神经功能既不能直接预测以后的外化行为，也不能直接预测以后的外化行为。然而，结果表明，高水平的 CU 特征预示着外化行为问题的增加，但仅适用于基线呼吸窦性心律失常（RSA）较高或对恐惧刺激几乎没有 RSA 抑制的幼儿。
Zotero 插件