一个认知地图,以价值为导向的选择在中腹前额叶皮层的中腹前额叶皮层
Sebastijan Veselic1,2, Timothy H Muller1,2, Elena Gutierrez1,2
1Department of Experimental Psychology, University of Oxford, UK.
bioRxiv : the preprint server for biology
|January 3, 2024
概括
大脑中的经济决策使用认知地图,类似于导航. 腹中前额叶皮层 (vmPFC) 使用类似网格的代码来表示价值,从而实现灵活的选择.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 决策科学 决策科学 决策科学
背景情况:
- 前额叶皮质对于经济决策和价值表现至关重要.
- 这些表示支持灵活选择的机制尚未完全理解.
研究的目的:
- 使用认知地图原则,在前额叶皮层内重新构建经济决策.
- 在以价值为基础的决策任务中,研究基于选择灵活性的神经表征.
主要方法:
- 分析 ventromedial前额叶皮层 (vmPFC) 中的局部场潜力和神经元活动.
- 使用由奖励大小和概率定义的2D值空间.
- 在vmPFC中检查了theta频率调制和波波纹.
主要成果:
- 在二维价值空间中的选择被以vmPFC θ频率的网格式代码表示,在数据集中复制.
- vmPFC神经元表现出类似网格的代码和编码的线性值,由theta频率调节.
- 在vmPFC中观察到尖的波,表明计划,并根据准确性和奖励进行调节.
结论:
- 在vmPFC中的经济决策涉及认知地图类计算,包括网格类编码.
- 这表明了理解前额叶皮质选择实施的新框架.
- 研究结果强调了空间导航原则在经济选择中的作用.
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