一般焦虑稳定性的遗传性:在年轻成年人中进行的一项纵向双胞胎研究
Julia Funk1,2, Geneviève Morneau-Vaillancourt1,3, Elisavet Palaiologou1
1Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Psychological medicine
|June 30, 2025
概括
遗传因素影响稳定的一般性焦虑,而环境因素则导致年轻人的变化. 确定了两种截然不同的一般性焦虑的维度:焦虑回避和体质焦虑症状.
科学领域:
- 精神病学是一个精神病学.
- 发展心理学 发展心理学
- 行为遗传学 行为遗传学
背景情况:
- 一般性焦虑障碍 (GAD) 在年轻人中很普遍,但影响其轨迹和维度结构的因素仍未得到充分研究.
- 现有的研究缺乏对二十多岁GAD症状连续性和变化的遗传和环境基础的全面调查.
- GAD症状呈现的异质性需要在这个人口群体中探索不同的症状集群.
研究的目的:
- 研究基因和环境对年轻成年人普遍焦虑症状的持续性和变化的影响.
- 为了确定稳定的普遍焦虑的遗传性,随着时间的推移.
- 探索泛式焦虑症状及其病因因素的因数结构.
主要方法:
- 利用双胞胎早期发育研究的数据,包括6,429对双胞胎.
- 评估了6个波的通用焦虑症状,从23岁到26岁.
- 采用定量遗传建模来检查病因对症状尺寸和稳定性的影响.
主要成果:
- 遗传因素主要解释了症状的持续性,而环境因素则解释了症状的变化.
- 稳定的泛性焦虑的遗传性 (60%) 显著高于任何单一时间点 (39-46%).
- 普遍焦虑的两个维度出现了:焦虑回避和体质焦虑症状,与环境相关性相比,它们之间的遗传相关性更强.
结论:
- 时间稳定性分析为识别对一般性焦虑的遗传影响提供了最强大的方法.
- 一般焦虑维度之间的差异受到环境因素的影响比遗传因素更大.
- 研究结果强调了遗传和环境影响在年轻成年人群中普遍焦虑的发展和表现上的复杂相互作用.
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