在童年虐待中桃体过度激活:基于ALE的对情感相关处理的元分析
1Doctoral Program in Education Sciences, College of Education, National Tsing Hua University, Hsinchu City 30013, Taiwan.
Neuroscience and biobehavioral reviews
|May 1, 2025
概括
童年虐待与大脑活动的改变有关,特别是在右桃体,在情感任务期间. 这一元分析揭示了受虐待个体中杏仁核过度激活的增加,这表明情绪反应性增加.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 发展心理学 发展心理学
背景情况:
- 童年虐待 (CM) 与不良的发育结果和精神疾病风险增加有关.
- 以前的功能磁共振成像 (fMRI) 研究显示,在感情处理过程中,受虐待的个体的神经反应发生了变化,但研究结果不一致.
- 缺乏对在情感任务中受到CM影响的大脑区域的清晰理解.
研究的目的:
- 综合现有的基于任务的fMRI数据,对具有童年虐待史的个体的情绪处理进行综合.
- 与对照人群相比,在受虐待的个体中确定大脑过度激活的一致模式.
- 在情感任务中确定儿童虐待改变的特定大脑区域.
主要方法:
- 在主要数据库中进行了遵循PRISMA指南的系统文献搜索.
- 激活概率估计 (ALE) 的元分析被用来合成30项研究的fMRI数据.
- 分析了2474名参与者 (1169名受虐待者,1305名对照者) 的数据,包括368个大脑坐标和93个对比度.
主要成果:
- 在有童年虐待历史的个体中,在情绪处理任务中,在右桃体中发现了显著的过度激活集群.
- 在坐标 [20, -4, -16] 观察到右桃体的峰值激活.
- 在对照组中没有发现增加激活的显著集群.
结论:
- 右桃体是受童年虐待影响的关键神经基质.
- 右桃体的过度活化可能是受到虐待的个体高度威胁检测和情绪反应的基础.
- 这些发现有助于理解童年虐待后情绪失调的神经机制.
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