EPISODE · Jul 22, 2026 · 31 MIN
1319-哺乳动物皮层连接组架构的几何约束
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这项研究提出了一种几何特征模态模型(GEM),旨在阐明哺乳动物大脑皮层连接组复杂拓扑与空间结构的物理起源。该模型基于神经场论,认为大脑连接并非随机产生,而是优先连接那些能够促进大脑几何形状产生共振激励模式的区域。通过对人类、黑猩猩、猕猴、绒猴及小鼠五种物种的数据分析,GEM 成功模拟了不同空间尺度下的经验连接组特征,且表现优于现有的随机或距离约束模型。研究结果表明,皮层几何形状在大脑布线中起着基础性作用,这一机制在长达 9000 万年的进化历程中保持了高度保守。此外,这种几何约束还呈现出个体差异,并随大脑尺寸的变化表现出异速生长规律。References:Normand F, Gajwani M, Cao T, et al. Geometric constraints on the architecture of mammalian cortical connectomes[J]. bioRxiv, 2025.前往小宇宙评论区与主播互动
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1319-哺乳动物皮层连接组架构的几何约束
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