Lent R
J Comp Neurol. 1982 Apr 10;206(3):227-42. doi: 10.1002/cne.902060303.
The subcortical projections of the hamster's visual cortex were determined by use of injections of tritiated proline and heat lesions placed in different cortical loci. The brains were processed for autoradiography and silver impregnation of degenerating axons. Striate cortex was shown to project ipsilaterally to the dorsocaudal region of the caudate nucleus, a dorsolateral area within the thalamic reticular nucleus (RT), a laterodorsal region of the nucleus lateralis anterior (LA), the rostral half of nucleus lateralis posterior (LP), the whole territory of the dorsal (dLGN) and ventral (vLGN) geniculate nuclei, the anterior (PA) and posterior (PP) pretectal nuclei, the superior colliculus (SC), and the precerebellar pontine nuclei. In addition, the medial visual area (18b) was shown to project to a medial band of LA and part of the caudal half of LP, while the adjoining parietal cortex was seen to terminate in a lateral part of the caudate, a ventral band of LA, and the ventral half of rostral LP. Segregation of different cortical inputs was clear in LA, LP, caudate, and pons. The projections to dLGN, vLGN, SC, LP, and PA were retinotopically organized. Clear evidence of some topography was found within RT, PP, and the pons, although a consistent map could not be derived from the data.
通过向仓鼠视觉皮层的不同位点注射氚化脯氨酸并进行热损伤，确定了其皮层下投射。对大脑进行放射自显影处理以及对退化轴突进行银浸染。结果显示，纹状皮层向同侧的尾状核背尾侧区域、丘脑网状核（RT）内的背外侧区、外侧前核（LA）的背外侧区域、外侧后核（LP）的 Rostral 半区、背侧（dLGN）和腹侧（vLGN）膝状核的整个区域、前顶盖前核（PA）和后顶盖前核（PP）、上丘（SC）以及脑桥小脑前核投射。此外，内侧视觉区（18b）向 LA 的内侧带和 LP 尾侧半区的一部分投射，而相邻的顶叶皮层则终止于尾状核的外侧部分、LA 的腹侧带以及 Rostral LP 的腹侧半区。在 LA、LP、尾状核和脑桥中，不同皮层输入的分离清晰可见。向 dLGN、vLGN、SC、LP 和 PA 的投射呈视网膜拓扑组织。在 RT、PP 和脑桥中发现了一些拓扑结构的明确证据，尽管无法从数据中得出一致的图谱。
