脉动爆发发射在thalamo-cortical注意力控制中的因果作用
Rober Boshra1, Michael Harris1,2, Kacie Dougherty1
1Princeton Neuroscience Institute, Princeton University; Princeton, NJ, USA.
bioRxiv : the preprint server for biology
|September 26, 2025
概括
thalamus 中的脉动突发对于注意力至关重要. 刺激这些突发会增强目标检测和控制皮质处理,这表明它们在注意力中起因作用.
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
- 甲状腺-皮层相互作用
背景情况:
- 灵长类人脉在注意力协调中的作用被建议,但没有因果证明.
- 脉动神经元中的神经元发射模式 (强度与爆发) 已知,但它们对行为的影响尚不清楚.
研究的目的:
- 调查脉动突发在注意力和行为中的因果作用.
- 为了确定脉动爆发是否影响皮质处理和认知功能.
主要方法:
- 在秘密注意力任务期间监测的脉动神经元活动.
- 使用电微刺激的pulvinar唤起神经元爆发.
- 分析了 parietal 皮层和行为表现中的人口代码.
主要成果:
- 脉突发被注意力调节,并预测了行为表现.
- 对于非cued目标和改变的顶叶皮层群体代码,爆发更频繁.
- 微刺激引起的爆发增强了目标检测和同步的皮质尖刺.
结论:
- 脉动性爆发是引起注意的原因.
- 揭示了一种 thalamo-cortical 机制,用于对 thalamus 的皮质处理和行为进行时刻控制.
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