EPISODE · Mar 8, 2026 · 28 MIN
607-基于全脑成像的跨尺度神经元形态学特征制图
from 聊聊Sci
该研究通过分析3.7拍字节（peta-voxels）的超大规模小鼠全脑成像数据，构建了目前全球最大的哺乳动物多尺度神经元形态数据库。研究团队利用自主开发的计算平台，精确标注了超过18万个神经元胞体，并对近2000个神经元进行了包含树突、轴突及263万个轴突静脉窦（突触位点）的全追踪。通过整合从微观亚细胞结构到宏观脑区群体的六个形态尺度特征，揭示了神经元在不同解剖空间下的多样性与刻板性规律。利用树突微环境和轴突投影特征，研究者成功识别出与传统解剖学高度契合的脑部模块，并发现了皮层神经元特定的投影“密码本”。这一成果为理解哺乳动物大脑的神经元类型分类和神经环路结构提供了关键的定量解剖学资源。References: Liu Y, Jiang S, Li Y, et al. Neuronal diversity and stereotypy at multiple scales through whole brain morphometry[J]. Nature communications, 2024, 15(1): 10269.前往小宇宙评论区与主播互动
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607-基于全脑成像的跨尺度神经元形态学特征制图
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