EPISODE · Apr 21, 2026 · 19 MIN
832-猴子皮质纹状体神经元的增强奖励编码与动力学研究
from 聊聊Sci
此研究利用光遗传学技术识别出猕猴大脑中从额叶眼动区（FEF）投射至基底神经节的特定神经元，并对其功能进行了深入分析。实验结果显示，这些投射神经元在任务中表现出比周围细胞更强的奖励预期、动作选择以及任务条件独立的信号调节。研究发现，视觉定向信号在进入基底神经节前，就已经在皮层中与奖励信息完成了高度整合。这一发现挑战了传统的单一奖励来源模型，表明基底神经节并非仅依赖多巴胺系统，而是同时整合了来自皮层输入的丰富奖励与决策信息。这为理解大脑如何协调感知、价值与运动控制提供了关键的环路证据。References: Hovav-Lixenberg A, Henshke Y, Kreisel T, et al. Enhanced reward coding and condition-independent dynamics in optogenetically identified corticostriatal neurons in monkeys[J]. Nature Communications, 2026.前往小宇宙评论区与主播互动
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832-猴子皮质纹状体神经元的增强奖励编码与动力学研究
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