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-Schioppa2,3,4
1Department of Neuroscience, Washington University in St. Louis.
概括
轨道前皮层 (OFC) 处理经济选择的主观价值,即使有多个选择. 在OFC中的神经元活动反映了风险偏好和决策变量,支持理性选择理论.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 行为经济学是一种行为经济学.
背景情况:
- 轨道前皮层 (OFC) 参与经济决策,特别是计算和比较主观价值.
- 以前的研究主要集中在二元选择上,使得对多元选择的神经机制的理解变得不太清楚.
研究的目的:
- 调查轨道前皮层 (OFC) 在多国经济选择过程中如何代表主观价值.
- 确定OFC神经活动是否支持合理选择原则,例如复杂场景中不相关替代品的独立性 (IIA).
主要方法:
- 来自OFC的电生理学记录显示, rhesus执行三元选择任务.
- 报价在果汁风味,数量和概率上有所不同,数量和概率不断变化.
主要成果:
- 子表现出寻求风险的行为,选择满足了无关选择的独立性 (IIA).
- 在OFC中,不同的神经元群体编码了报价值,选择结果,选择值,选择概率和选择的半场.
- OFC神经元活动反映了主观价值,风险态度和决策变量,与菜单大小的变化保持不变,因此暗示IIA.
结论:
- 轨道前皮层 (OFC) 在多元经济选择中起着至关重要的作用,它与二元选择类似地处理主观价值.
- OFC的神经表示支持合理的经济行为,包括无关的替代品 (IIA) 的独立性,即使面临复杂的,多属性选项.
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