中背脊体核 - 中间前额叶皮层电路调节成本效益决策选择选择
Tong-Hao Ding1, Yu-Ying Hu1,2, Jia-Wen Li3
1Institute of Biomedical Innovation, Nanchang University, Nanchang 330031, China.
Cerebral cortex (New York, N.Y. : 1991)
|December 13, 2024
概括
脊髓下丘脑和中间前额叶皮层的途径对于决策的动机至关重要. 这条路径调节了老鼠如何衡量成本和收益,以追求奖励.
科学领域:
- 神经科学是一个神经科学.
- 决策研究 决策研究
- 行为经济学是一种行为经济学.
背景情况:
- 基于价值的决策需要评估成本和收益.
- 中间前额叶皮层 (mPFC) 参与成本效益分析.
- 在决策过程中,中背丘脑 (MD) 与mPFC相互作用.
研究的目的:
- 探索MD-mPFC途径在决策过程中调节动机方面的作用.
- 研究MD-mPFC投影如何调节mPFC中的神经元活动.
- 了解决策中的成本效益评估背后的神经机制.
主要方法:
- 鼠被训练在一个自我决定的决策任务与不同的奖励大小.
- 执行mPFC或MD的非激活,以评估其对决策的影响.
- 用光遗传刺激和MD-mPFC通路的抑制来操纵通路活性.
- 在mPFC中记录和分析了神经元触发模式.
主要成果:
- 禁用mPFC或MD损害了老鼠寻求更大的奖励的能力.
- 刺激MD-mPFC通路增加了对更大的奖励的动机;抑制减少了它.
- 在mPFC中,一个特定的神经元群体表现出与动机相关的发射模式.
- MD-mPFC投影调节了这些与动机相关的神经元的活动.
结论:
- MD-mPFC途径在保持价值观决策过程中的动机方面发挥着至关重要的作用.
- 特定的mPFC神经元编码动机水平,受到MD-mPFC通路的影响.
- 这一途径对于整合成本效益信息来引导寻求奖励的行为至关重要.
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