Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA.
Department of Psychology, University of Washington, Seattle, WA, USA.
Psychol Med. 2021 Aug;51(11):1880-1889. doi: 10.1017/S0033291720000641. Epub 2020 Apr 7.
Disruptions in neural circuits underlying emotion regulation (ER) may be a mechanism linking child maltreatment with psychopathology. We examined the associations of maltreatment with neural responses during passive viewing of negative emotional stimuli and attempts to modulate emotional responses. We investigated whether the influence of maltreatment on neural activation during ER differed across development and whether alterations in brain function mediated the association between maltreatment and a latent general psychopathology ('p') factor.
Youth aged 8-16 years with (n = 79) and without (n = 72) exposure to maltreatment completed an ER task assessing neural responses during passive viewing of negative and neutral images and effortful attempts to regulate emotional responses to negative stimuli. P-factor scores were defined by a bi-factor model encompassing internalizing and externalizing psychopathology.
Maltreated youth had greater activation in left amygdala and salience processing regions and reduced activation in multiple regions involved in cognitive control (bilateral superior frontal gyrus, middle frontal gyrus, and dorsal anterior cingulate cortex) when viewing negative v. neutral images than youth without maltreatment exposure. Reduced neural recruitment in cognitive control regions mediated the association of maltreatment with p-factor in whole-brain analysis. Maltreated youth exhibited increasing recruitment with age in ventrolateral prefrontal cortex during reappraisal while control participants exhibited decreasing recruitment with age. Findings were similar after adjusting for co-occurring neglect.
Child maltreatment influences the development of regions associated with salience processing and cognitive control during ER in ways that contribute to psychopathology.
情绪调节(ER)相关神经回路的中断可能是将儿童虐待与精神病理学联系起来的一种机制。我们研究了虐待与消极情绪刺激被动观察期间的神经反应以及调节情绪反应的尝试之间的关联。我们调查了虐待对 ER 期间神经激活的影响是否因发育而异,以及大脑功能的改变是否介导了虐待与潜在的一般精神病理学(“p”因素)之间的关联。
年龄在 8 至 16 岁之间的青少年(n = 79)和未暴露于虐待的青少年(n = 72)完成了一项 ER 任务,该任务评估了消极和中性图像被动观看期间以及努力调节对消极刺激的情绪反应期间的神经反应。p 因子分数由一个双因子模型定义,包括内化和外化精神病理学。
与未受虐待的青少年相比,受虐待的青少年在观看消极图像时,左杏仁核和突显处理区域的激活增加,而参与认知控制的多个区域(双侧额上回、额中回和背侧前扣带回皮质)的激活减少。认知控制区域的神经募集减少介导了虐待与全脑分析中 p 因子的关联。受虐待的青少年在再评价期间表现出腹外侧前额叶皮层的招募随年龄增加而增加,而对照组则表现出随年龄减少而招募。在调整同时发生的忽视后,发现结果相似。
儿童虐待会影响 ER 期间与突显处理和认知控制相关的区域的发育,从而导致精神病理学。