Alloway K D, Mutic J J, Hoover J E
Department of Neuroscience and Anatomy, Pennsylvania State University, Hershey, PA 17033, USA.
Brain Res. 1998 Mar 2;785(2):341-6. doi: 10.1016/s0006-8993(97)01363-2.
We injected biotinylated dextran amine (BDA) into single vibrissal 'barrels' of primary somatosensory (SI) cortex and reconstructed the topography of labelled varicosities in the dorsolateral caudate-putamen. Plots of labelled varicosities revealed densely-packed clusters of corticostriatal arborizations along the dorsolateral edge of the caudate-putamen and sparsely-packed arborizations more medially. The medial and lateral clusters of labelled terminals were separated by regions of unlabelled neuropil and lead us to conclude that a single cortical column sends divergent projections to multiple regions of the caudate-putamen.
我们将生物素化葡聚糖胺（BDA）注入初级体感（SI）皮层的单个触须“桶状区”，并重建了背外侧尾状核-壳核中标记曲张体的地形图。标记曲张体的图谱显示，沿着尾状核-壳核的背外侧边缘有密集排列的皮质纹状体分支簇，而在内侧则有稀疏排列的分支。标记终末的内侧和外侧簇被未标记的神经毡区域分隔开，这使我们得出结论，单个皮质柱向尾状核-壳核的多个区域发出发散性投射。
