中央执行和突出网络之间的连接在儿童焦虑症中以暴露为重点的CBT正常化
medRxiv : the preprint server for health sciences
|February 6, 2026
概括
以曝光为重点的CBT在焦虑的年轻人中使大脑网络连接正常化. 这种治疗加强了控制和突出网络之间的联系,与放松训练不同.
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.
- 认知行为疗法是认知行为疗法.
背景情况:
- 儿科焦虑的认知行为疗法 (CBT) 依赖于暴露,理论上涉及认知控制网络.
- 关于CBT如何具体改变这些网络内的内在连接性,人们知之甚少.
- 在小组分析中,焦虑的异质网络连接可能会掩盖治疗效应.
研究的目的:
- 调查暴露集中性CBT (EF-CBT) 如何影响儿科焦虑症认知控制网络的静止状态连接.
- 将EF-CBT的效果与活性对照进行比较 (放松指导培训;RMT).
- 利用个体特定的网络建模来捕捉个人连接结构.
主要方法:
- 一项随机临床试验,涉及7-18岁的青少年,患有焦虑障碍或焦虑程度低/不高.
- 在治疗前和治疗后 (EF-CBT或RMT) 的休息状态fMRI扫描.
- 集团代多重模型估计用于对内部中央执行 (CEN),CEN突出网络 (SN) 和CEN默认模式网络 (DMN) 密度的个人特定网络分析.
主要成果:
- 与对照人群相比,焦虑的年轻人在CEN内部,CEN-SN和CEN-DMN之间显示出较低的基线连接性.
- EF-CBT选择性地增加了CEN-SN密度,使连接正常化.
- RMT增加了CEN内部密度,显示了干预的可分离效应.
结论:
- 以曝光为重点的CBT独特地增强了儿科焦虑症中认知控制和突出网络之间的协调.
- 这种强化支持在暴露治疗期间对威胁信号的自上而下的控制.
- 基于网络的措施为优化个性化焦虑治疗提供了潜力.
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