EPISODE · Jul 28, 2026 · 14 MIN
1346-MIND模型与皮层感觉运动—联合轴的发育
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这项研究提出了MIND模型,揭示了大脑皮层中感觉运动-联合轴(S-A轴)形成的生物学机制。研究发现,大脑发育受两套相互竞争的遗传程序驱动:“周缘”程序从额颞极向内推进,定义复杂的联合功能;而“中央”程序则受丘脑输入诱导,确立基础的感觉运动区域。这两套程序在空间上表现出强烈的拮抗与互补性,通过诱导与排斥过程将皮层划分为不同的功能区。这种竞争机制不仅决定了神经元的连接方式,还解释了为何感觉运动区像“岛屿”一样被广阔的联合皮层“海洋”包围。该发现为理解哺乳动物大脑的进化演变、皮层级联结构的建立以及自闭症等临床疾病提供了统一的理论框架。References:Tsyporin J, Zhang M, Qi C, et al. Competing programs shape cortical sensorimotor–association axis development[J]. Nature, 2026: 1-12.前往小宇宙评论区与主播互动
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1346-MIND模型与皮层感觉运动—联合轴的发育
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