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用霍乱毒素Ｂ亚单位（ＣＢ）追踪法系统地研究了大鼠大脑皮层与尾壳核和尾壳核与黑质之间的定位投射。将ＣＢ分别泳入尾壳核不同节段的不同区域后，大脑皮层内的逆标胞体和顺标终末主要见于额叶１区和２区、顶叶１区和２区以及颗粒岛皮质；黑质内的顺标终末主要见于网状带的不同部位，而逆标胞体则主要见于致密带和腹侧被盖区。本研究结果说明在大鼠大脑皮层－尾壳核和尾壳核－黑质之间存在着且有点对点定位特征的往返联系。这种定位投射对躯体运动的精细调节提供了形态学基础。
The targeting projection between the rat cerebral cortex and caudate putamen nucleus and caudate putamen nucleus and substantia nigra was systematically investigated using the cholera toxin B subunit (CB) tracing method. After the CBs were respectively introduced into different regions of different segments of the caudate putamen, the anti-labeled somatic cells and the cis-terminators in the cerebral cortex were mainly found in the frontal lobe regions 1 and 2, the parietal lobe regions 1 and 2, and the granular island cortex; black The end of the quality of the main end of the mesh found in different parts of the mesh belt, while the anti-marked body cells are mainly seen in the tight zone and the ventral tegmental area. The results of this study show that there is a reciprocal connection between the cerebral cortex - caudate putamen and caudate putamen - substantia nigra in the rat brain. This positioning projection provides a morphological basis for the fine adjustment of body motion.