Wilczynski W, Northcutt R G
J Comp Neurol. 1983 Mar 1;214(3):321-32. doi: 10.1002/cne.902140309.
Afferents to the dorsal and ventral striatum of the bullfrog (Rana catesbeiana) were revealed by horseradish peroxidase (HRP) histochemistry. Anterograde tracing techniques (autoradiography and anterograde HRP transport) were then used to confirm the projections and to describe their terminal fields within the striatum. The major input arises from the ipsilateral lateral anterior and central thalamic nuclei, which receive tectal (Rubinson, '68) and toral (Neary, '74) input, respectively. These projections terminate in a dense, homogeneous field within the striatal neuropil adjacent to the cell plates of both striatal divisions. A second heavy input arises from the anterior entopeduncular nucleus bilaterally, with axons from the contralateral side crossing in the anterior commissure. This input terminates in both striatal divisions but is heaviest ventrally. Sparser inputs are present from the ipsilateral lateral and medial amygdalar nuclei, the preoptic area (mainly from the very caudal suprachiasmatic division), the posterior tuberculum, and the ipsilateral superficial isthmal reticular nucleus of the tegmentum. All these afferents, with the possible exception of the preoptic input, ascend to the striatum via the lateral forebrain bundle, and all innervate both striatal divisions. The preoptic input terminates within the cell plates, as well as subpially in a pattern similar to that described for tubercular input (Neary and Wilczynski, '77). The tegmental input is very sparse and is most apparent superficially. Afferents from pallial telencephalic areas are not present, suggesting that although anurans receive striatal input from the diencephalon and mesencephalon, they do not possess a homolog of the mammalian corticostriatal system. Further, the extremely heavy input from the middle dorsal thalamic zone suggests that a major function of the anuran striatum involves processing sensory information from the midbrain roof.
通过辣根过氧化物酶（HRP）组织化学方法揭示了牛蛙（Rana catesbeiana）背侧和腹侧纹状体的传入纤维。然后采用顺行追踪技术（放射自显影和顺行性HRP运输）来确认投射并描述其在纹状体内的终末场。主要输入来自同侧外侧前丘脑核和中央丘脑核，它们分别接受顶盖（鲁宾逊，1968年）和顶盖前区（尼尔，1974年）的输入。这些投射终止于纹状体神经毡内与两个纹状体分区细胞板相邻的致密、均匀区域。第二个大量输入来自双侧内侧前脑核，对侧的轴突在前连合交叉。该输入终止于两个纹状体分区，但在腹侧最重。来自同侧外侧和内侧杏仁核、视前区（主要来自最尾侧的视交叉上核分区）、后结节以及同侧被盖部浅部峡网状核的输入较稀疏。所有这些传入纤维，可能视前区输入除外，都通过外侧前脑束上升至纹状体，并且都支配两个纹状体分区。视前区输入终止于细胞板内，以及软膜下，其模式类似于对结节输入所描述的模式（尼尔和威尔钦斯基，1977年）。被盖部输入非常稀疏，在表面最明显。来自端脑皮质区域的传入纤维不存在，这表明尽管无尾两栖类动物从间脑和中脑接受纹状体输入，但它们不具有哺乳动物皮质纹状体系统的同源物。此外，来自丘脑背侧中部区域的极大量输入表明，无尾两栖类动物纹状体的一个主要功能涉及处理来自中脑顶盖的感觉信息。
