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Updated: Mar 13, 2026

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位置coeruleus-杏仁体电路破坏前额头控制,以损害恐惧灭绝

Hugo Bayer^1,2,3,4, Annalise N Binette^3,4, Samantha O Sweck^3,4

¹Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801.

Proceedings of the National Academy of Sciences of the United States of America

|March 11, 2026

概括

压力通过影响腹中前额叶皮质 (vmPFC) 损害了灭绝学习. 核心位置 (LC) 激活底侧杏仁体 (BLA),然后影响vmPFC,阻碍神经精神疾病的治疗.

科学领域:

神经科学是一个神经科学.
行为科学行为科学
心理学心理学心理学

背景情况:

压力对灭绝学习产生负面影响,这种过程对于神经精神疾病的基于暴露的疗法至关重要.
风中介前额叶皮层 (vmPFC) 功能障碍与压力诱导的灭绝学习障碍有关.
在灭绝期间对vmPFC功能的压力影响中介的特定神经回路仍然不清楚.

研究的目的:

研究通过压力调节腹中前额皮层 (vmPFC) 功能并损害灭绝学习的神经回路.
为了测试这个假设,locus coeruleus (LC) 上腺素通过基底侧杏仁体 (BLA) 投射到vmPFC影响灭绝.

主要方法:

在动物模型中利用了电路特定的化学遗传学和成像.
激活神经元 (Locus Coeruleus,LC) 的北上腺神经元以模仿行为压力.
在vmPFC和BLA中测量神经元活动,并评估灭绝学习行为.

主要成果:

激活LC noradrenergic神经元复制了压力影响,包括结行为和受损的灭绝学习.
LC激活减少了vmPFC神经元活动,改变了组合动态.
LC激活增加了向vmPFC投射的BLA神经元中的反应,选择性LC→BLA激活损害了灭绝.
在BLA (propranolol) 中的药理阻塞减轻了LC诱导的灭绝障碍.

结论:

底侧杏仁体 (BLA) 作为一个关键的接口,在位置 coeruleus (LC) 和vmPFC之间.
由于压力导致的灭绝学习障碍是由LC→BLA→vmPFC路径介导的.
了解这种电路为缓解神经精神疾病中的压力影响提供了潜在的目标.

关键词:

基本侧面的杏仁体灭绝的灭绝是一种灭绝.这里是locus coeruleus的地方.前额叶皮层前额叶皮层.压力就是压力,压力就是压力.

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