Bedford Rachael, Pickles Andrew, Sharp Helen, Wright Nicola, Hill Jonathan
Biostatistics Department, Institute of Psychiatry, King's College London, London.
Biostatistics Department, Institute of Psychiatry, King's College London, London.
Biol Psychiatry. 2015 Jul 15;78(2):144-50. doi: 10.1016/j.biopsych.2014.09.022. Epub 2014 Oct 6.
Children with callous-unemotional (CU) traits, a proposed precursor to adult psychopathy, are characterized by impaired emotion recognition, reduced responsiveness to others' distress, and a lack of guilt or empathy. Reduced attention to faces, and more specifically to the eye region, has been proposed to underlie these difficulties, although this has never been tested longitudinally from infancy. Attention to faces occurs within the context of dyadic caregiver interactions, and early environment including parenting characteristics has been associated with CU traits. The present study tested whether infants' preferential tracking of a face with direct gaze and levels of maternal sensitivity predict later CU traits.
Data were analyzed from a stratified random sample of 213 participants drawn from a population-based sample of 1233 first-time mothers. Infants' preferential face tracking at 5 weeks and maternal sensitivity at 29 weeks were entered into a weighted linear regression as predictors of CU traits at 2.5 years.
Controlling for a range of confounders (e.g., deprivation), lower preferential face tracking predicted higher CU traits (p = .001). Higher maternal sensitivity predicted lower CU traits in girls (p = .009), but not boys. No significant interaction between face tracking and maternal sensitivity was found.
This is the first study to show that attention to social features during infancy as well as early sensitive parenting predict the subsequent development of CU traits. Identifying such early atypicalities offers the potential for developing parent-mediated interventions in children at risk for developing CU traits.
具有冷酷无情(CU)特质的儿童被认为是成人精神病态的先兆,其特征是情绪识别受损、对他人痛苦的反应性降低以及缺乏内疚感或同理心。有人提出,对面部,尤其是眼部区域的注意力降低是导致这些问题的原因,尽管从未从婴儿期开始进行纵向测试。对面部的注意力出现在二元照料者互动的背景下,早期环境包括养育特征与CU特质有关。本研究测试了婴儿对直接注视的面部的优先追踪以及母亲的敏感程度是否能预测后期的CU特质。
对从1233名初产妇的人群样本中分层随机抽取的213名参与者的数据进行分析。将婴儿在5周时的优先面部追踪和母亲在29周时的敏感程度作为2.5岁时CU特质的预测指标纳入加权线性回归。
在控制了一系列混杂因素(如剥夺)后,较低的优先面部追踪预测了较高的CU特质(p = 0.001)。较高的母亲敏感程度预测女孩的CU特质较低(p = 0.009),但对男孩没有影响。未发现面部追踪与母亲敏感程度之间存在显著交互作用。
这是第一项表明婴儿期对社会特征的注意力以及早期敏感养育能预测CU特质后续发展的研究。识别这些早期异常情况为针对有发展CU特质风险的儿童开展家长介导的干预措施提供了可能性。