皮质反应的试验对试验变异性显示出从关键动态中预测的空间相关性的缩放
Tiago L Ribeiro1, Peter Jendrichovsky2, Shan Yu3
1Section on Critical Brain Dynamics, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA.
Cell reports
|February 11, 2024
概括
大脑皮层中的神经反应表现出试验对试验的变化,这不是随机噪音,而是关键动态. 这种由波动主导的状态增强了大脑的功能.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
背景情况:
- 哺乳动物皮质活动在对刺激的反应中显示出显著的试验对试验的变化.
- 了解这种变化的空间组织和时间动态对于破译神经处理至关重要.
研究的目的:
- 研究哺乳动物皮层中神经元反应变化的空间模式和动态.
- 为了确定试验对试验的变化是否反映了潜在的关键大脑动态.
主要方法:
- 在清醒的小鼠中进行细胞二光子成像,以记录初级皮层中的视觉和听觉反应.
- 对个体神经元相对于人口活动的反应进行分析.
- 神经元模拟以建模关键动态.
- 慢性多电极记录在非人类灵长类动物在运动任务.
主要成果:
- 在神经元反应差异中观察到一致的,试验独特的空间相关性.
- 这些相关性与观察到的皮层区域线性缩放,与关键动态一致.
- 在灵长类动物的前额叶和前运动皮层中,在运动任务中发现了类似的缩放模式.
结论:
- 在大脑皮层中,试验对试验的变化不是随机噪音,而是关键动态的签名.
- 这种由波动主导的状态可能支持大脑高效的信息处理.
- 这些发现表明,在物种和任务之间,皮质组织的普遍原则.
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