在面临风险的三元选择期间,轨道前皮层的神经活动.
Miguel Barretto-Garcia1, Jiaxin Cindy Tu1, Camillo Padoa-Schioppa1,2,3
1Department of Neuroscience, Washington University in St. Louis.
bioRxiv : the preprint server for biology
|September 26, 2025
概括
轨道前皮层 (OFC) 中的神经活动反映了复杂的经济选择期间的主观价值. OFC神经元编码决策变量,证明菜单大小的不变性并支持经济理论.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 神经经济学 神经经济学
背景情况:
- 经济选择涉及比较主观价值观.
- 轨道前皮层 (OFC) 参与了价值计算和比较.
- 之前的研究主要研究二元选择,使得多元选择的理解较少.
研究的目的:
- 调查OFC如何在多国经济选择中代表主观价值.
- 确定OFC神经表示是否与经济原则相一致,例如无关替代品的独立性 (IIA).
主要方法:
- 来自 rhesus 子执行三元选择的电生理学记录.
- 报价因果汁的味道,数量和概率而有所不同.
- 与选择变量和行为结果相关的神经活动的分析.
主要成果:
- 在OFC中的神经元编码了报价值,选择结果和选择值,类似于二进制选择研究.
- 特定的细胞组代表了所选的概率和 hemifield.
- 报价值细胞活动反映了行为风险寻求态度和会话间的波动,表明主观价值表示.
- OFC的神经表示与菜单大小不变,支持IIA原则.
结论:
- 在复杂的多国经济决策中,OFC在代表主观价值观方面发挥着至关重要的作用.
- OFC神经活动反映了个人的风险态度和价值的主观性质.
- OFC的表述对选择集大小的变化具有稳定性,与基本的经济假设一致.
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