Wicht H, Himstedt W
Neurosci Lett. 1986 Jul 11;68(1):90-4. doi: 10.1016/0304-3940(86)90235-1.
Ascending thalamo-telencephalic projection systems have been investigated in an urodele, Triturus alpestris, using the horseradish peroxidase technique. Two separate dorsal thalamic projections onto the telencephalon have been identified; one arises from the posterior dorsal thalamus and terminates in the ipsilateral striatum, the other originates from anterior dorsal thalamic cells and reaches the medial pallium and a part of the dorsal pallium bilaterally. Both systems, which are spatially well segregated, might carry visual information to the telencephalon, as the posterior dorsal thalamus receives tectal, and the anterior dorsal thalamus direct retinal input. The urodele projection scheme as described here shows great similarities to the one described in anurans, although there are remarkable cytoarchitecture differences between the anuran and the urodele thalamus.
利用辣根过氧化物酶技术,对有尾两栖类动物高山蝾螈的丘脑-端脑上行投射系统进行了研究。已确定有两条独立的从背侧丘脑投射到端脑的路径;一条起自丘脑背侧后部,终止于同侧纹状体,另一条起源于丘脑背侧前部细胞,双侧到达内侧皮质和部分背侧皮质。这两条在空间上分隔良好的系统可能将视觉信息传递到端脑,因为丘脑背侧后部接收顶盖的信息,而丘脑背侧前部直接接收视网膜的输入。尽管无尾两栖类动物和有尾两栖类动物的丘脑在细胞结构上存在显著差异,但此处描述的有尾两栖类动物的投射模式与无尾两栖类动物中描述的模式有很大相似性。