Humphreys Kathryn L, Kircanski Katharina, Colich Natalie L, Gotlib Ian H
Department of Psychology, Stanford University, Stanford, CA, USA.
J Child Psychol Psychiatry. 2016 Oct;57(10):1174-82. doi: 10.1111/jcpp.12607. Epub 2016 Jul 26.
Early life stress is associated with poorer social functioning. Attentional biases in response to threat-related cues, linked to both early experience and psychopathology, may explain this association. To date, however, no study has examined attentional biases to fearful facial expressions as a function of early life stress or examined these biases as a potential mediator of the relation between early life stress and social problems.
In a sample of 154 children (ages 9-13 years) we examined the associations among interpersonal early life stressors (i.e., birth through age 6 years), attentional biases to emotional facial expressions using a dot-probe task, and social functioning on the Child Behavior Checklist.
High levels of early life stress were associated with both greater levels of social problems and an attentional bias away from fearful facial expressions, even after accounting for stressors occurring in later childhood. No biases were found for happy or sad facial expressions as a function of early life stress. Finally, attentional biases to fearful faces mediated the association between early life stress and social problems.
Attentional avoidance of fearful facial expressions, evidenced by a bias away from these stimuli, may be a developmental response to early adversity and link the experience of early life stress to poorer social functioning.
早年生活压力与较差的社会功能相关。对威胁相关线索的注意偏向,与早期经历和精神病理学均有关联,可能解释了这种关联。然而,迄今为止,尚无研究考察作为早年生活压力函数的对恐惧面部表情的注意偏向,也未将这些偏向作为早年生活压力与社会问题之间关系的潜在中介因素进行考察。
在154名儿童(9至13岁)的样本中,我们考察了人际早年生活应激源(即从出生到6岁)、使用点探测任务对情绪面部表情的注意偏向以及儿童行为量表上的社会功能之间的关联。
即使在考虑了童年后期出现的应激源之后,高水平的早年生活压力仍与更高水平的社会问题以及远离恐惧面部表情的注意偏向相关。未发现作为早年生活压力函数的对快乐或悲伤面部表情的偏向。最后,对恐惧面孔的注意偏向介导了早年生活压力与社会问题之间的关联。
对恐惧面部表情的注意回避,表现为远离这些刺激的偏向,可能是对早期逆境的一种发展性反应,并将早年生活压力的经历与较差的社会功能联系起来。