在注意期间,人类中环岛网络的焦点乙胆能调制:元分析神经成像和行为证据
Sudesna Chakraborty1,2,3,4, Sun Kyun Lee4,5, Sarah M Arnold4,6
1Neuroscience Graduate Program, Western University, London, Ontario, Canada.
Journal of neurochemistry
|October 21, 2023
概括
来自基础前脑的乙胆会影响人类皮层中的注意力网络. 这种神经递质通过调节涉及注意力和突出性的关键大脑区域来加速反应.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
背景情况:
- 基底前脑中的胆固醇神经元在整个皮质中广泛发射.
- 皮层胆固醇内置分布不均,可能有利于参与监督注意力的区域.
研究的目的:
- 研究人类皮质中乙胆能调制和注意力之间的空间关系.
- 整合来自药理学和非药理学神经成像研究的发现.
主要方法:
- 在人类神经成像研究中采用了元分析策略.
- 分析了乙胆的药理学调节和非药理学注意力参与.
- 多式成像 (PET/MRI) 用于估计胆固醇内置密度.
主要成果:
- 乙胆调节增加了前带状皮质的活性,并降低了关皮质和岛屿皮质的活性.
- 注意力参与显示了这些区域与基底前脑和彼此的协同激活.
- 在密集的胆固醇内置和这些与注意力相关的皮质区域之间发现了空间重叠.
- 乙胆调节加快了目标反应时间,但没有影响准确性.
结论:
- 通过基底前脑路径,中环岛枢纽的乙胆能调节可能协调与任务相关的信息的选择.
- 这种调制通过影响腹部注意力/突出网络来促进认知过程和行为.
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