大脑静止状态功能连接的改变与社会焦虑症和早期生活逆境相关
Melina Leypoldt1, Ariane Wiegand1,2, Matthias Munk1
1Department of Psychiatry and Psychotherapy, Tuebingen Center for Mental Health (TüCMH), Tuebingen, Germany.
Translational psychiatry
|March 14, 2025
概括
早期的生活逆境 (ELA) 在社会焦虑障碍 (SAD) 中显著改变大脑连接. 这项研究揭示了基于ELA的SAD患者的独特的静止状态功能连接模式,突出显示左中额头.
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.
- 神经成像是一种神经成像.
背景情况:
- 社会焦虑障碍 (SAD) 的特点是对负面评价和社会回避的恐惧,严重影响生活质量.
- 早期的生活逆境 (ELA) 是SAD的确立风险因素,但它们的神经生物学基础仍然不完全理解.
- 之前关于SAD的神经成像研究报告了关于静止状态功能连接 (RSFC) 的不一致发现,特别是在前额和前区域.
研究的目的:
- 在休息状态功能连接 (RSFC) 层面研究社会焦虑障碍 (SAD) 和早期生活逆境 (ELA) 之间的相互作用.
- 通过SAD和ELA的相互作用调节的特定大脑网络和神经相关物.
- 探索ELA对患有SAD的个体大脑功能的缓解作用.
主要方法:
- 功能性磁共振成像 (fMRI) 用于120名参与者 (19-48岁),根据SAD诊断和ELA水平分为四组.
- 基于种子的相关性分析 (SCA) 和多声素模式分析 (MVPA) 用于检查RSFC模式.
- 对一般焦虑和抑郁症的控制分析,以隔离SAD和ELA的影响.
主要成果:
- 确定了一个重要的网络,其中ELA在静止状态下缓和SAD的神经相关物,涉及下前带状皮质,左中额头环,裂/前.
- 观察了SAD和ELA之间的五种不同的相互作用模式,根据他们的ELA史,在SAD个体中显示了相反的RSFC模式.
- 情绪性ELA的情感成分显著影响了这些观察到的相互作用,左中额头环作为SAD-ELA相互作用的关键环节.
结论:
- 早期的生活逆境,特别是它们的情感方面,在社会焦虑障碍中极大地调节了休息状态的功能连接.
- 这些发现需要考虑情感ELA作为SAD和潜在的其他精神疾病的神经成像研究的关键共变量,以协调不一致的结果.
- 建议进行纵向研究,以阐明ELA对大脑功能的发育影响,并确定SAD倾向的潜在神经生物学标志物.
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