一个用于调节兴奋状态的皮质位置
Nithik Chintalacheruvu1, Anagha Kalelkar1, Jöel Boutin2
1WM Keck Center for Collaborative Neuroscience, Department of Cell Biology and Neuroscience, Rutgers University - New Brunswick, Piscataway, New Jersey, USA.
bioRxiv : the preprint server for biology
|June 3, 2024
概括
前带带皮层 (ACC) 通过调节皮层下结构来维持兴奋事件. 在瞳孔膨胀期间抑制ACC活动抑制了兴奋,揭示了它在调节兴奋状态方面的作用.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 计算神经科学是一种神经科学.
背景情况:
- 全球兴奋波动极大地影响皮质活动和功能.
- 皮质下结构,比如皮质位置 (LC),调节兴奋,但上下皮质输入的作用是不太了解.
- 前带皮层 (ACC),前额叶皮层的分支,被调查其在兴奋调节中的作用.
研究的目的:
- 研究前带状皮质 (ACC) 在调节全球兴奋中的作用.
- 为了确定ACC活动是否参与激发状态的实时调节.
- 了解皮层和皮下结构在兴奋控制中的相互作用.
主要方法:
- 利用包括瞳孔大小,面部运动,心率和运动在内的非侵入性措施来评估兴奋和行为状态.
- 开发了带有机器视觉的闭环光遗传系统,用于实时操纵ACC活动.
- 采用光纤摄影仪记录自发性兴奋事件期间的ACC神经活动.
主要成果:
- 在瞳孔膨胀期间实时抑制ACC活动抑制了正在进行的兴奋事件.
- ACC活动与自发瞳孔扩张和面部运动进行缩放,独立于运动.
- 对ACC的光遗传激活增加了兴奋,而ACC的非激活抑制了与兴奋相关的对突出刺激的反应.
结论:
- 前带状皮质 (ACC) 被确定为一个关键的皮质区域,可以维持瞬间的兴奋增加.
- 研究结果表明,LC启动兴奋事件,而ACC则实时调节它们.
- 这项研究为了解控制兴奋状态调节的皮层-皮下动力学提供了基础.
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