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在感知决策期间的动态模式和神经模式的过渡
Thomas Zhihao Luo1,2, Timothy Doyeon Kim3,4,5, Diksha Gupta6,7
1Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA. luo@utah.edu.
Nature
|September 17, 2025
概括
神经动力学显示了决策过程中的不同阶段. 一个过渡点,神经推断的承诺时间 (nTc),标志着大脑在独立于外部时间的情况下做出选择.
科学领域:
- 神经科学
- 计算神经科学
背景情况:
- 感知决策涉及复杂的神经网络动态.
- 了解决策承诺的精确神经机制和时间至关重要.
研究的目的:
- 揭示与大鼠前皮层和状体有关的神经动态.
- 确定决策承诺的神经基础及其时间.
主要方法:
- 一起录制数百个神经元.
- 分析神经活动的无监督深度学习方法.
- 开发一个简化的模型来估计神经推断的承诺时间 (nTc).
主要成果:
- 神经轨迹显示了两个连续的模式:感官驱动和自主动态.
- 观察到神经模式的过渡,与初始阶段对齐.
- 神经推断的承诺时间 (nTc) 在试验和预测的行为结果之间有所不同.
结论:
- 决策承诺涉及神经动态系统和模式的快速转变.
- 神经推断的承诺时间 (nTc) 作为内脑状态变化的神经标记.
- 在nTc之前的证据处理会影响决策,而之后的证据则不会.
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