价值动态会影响决策过程中的选择准备
Zuzanna Z Balewski1, Thomas W Elston1, Eric B Knudsen1
1Helen Wills Neuroscience Institute, University of California at Berkeley, Berkeley, CA, USA.
Nature neuroscience
|August 10, 2023
概括
轨道前皮层 (OFC) 中的神经元在决策过程中影响前带状皮层 (ACC). 这种相互作用有助于大脑通过调节 ACC 中的神经活动来选择最有价值的选项.
科学领域:
- 神经科学是一个神经科学.
- 决策研究 决策研究
- 灵长类的认知能力
背景情况:
- 轨道前皮层 (OFC) 在决策过程中连续表示选项值.
- 前带带皮质 (ACC) 包含编码选择反应的神经元,并与OFC连接.
- OFC价值信号与ACC选择相关活动之间的确切相互作用仍然不清楚.
研究的目的:
- 研究OFC值信号与编码选择反应的ACC神经元之间的相互作用.
- 了解OFC动态如何通过ACC转化为选择响应.
- 阐明基于价值的决策背后的神经机制.
主要方法:
- 在非人类灵长类动物的OFC和ACC中同时进行高通道计数电生理学记录.
- 在涉及基于价值的选择的决策任务期间记录了神经活动.
- 分析的重点是两个地区神经元发射率的时间动态.
主要成果:
- 编码选择反应的ACC神经元在发射速度上呈现稳定的增加,在选择之前达到峰值.
- OFC价值表示模块化ACC神经提升;更高价值选项加速了ACC活动.
- OFC在较长时间内代表更有价值的选项的趋势与ACC上升动态相关.
结论:
- 在OFC价值信号和ACC升级之间的相互作用提供了一个潜在的机制来选择更有价值的选择.
- ACC神经元整合来自OFC的价值信息来指导行为反应.
- 这项研究揭示了基于价值的决策和行动选择背后的神经回路.
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