Pasquier D A, Villar M J
Exp Brain Res. 1982;48(3):409-19. doi: 10.1007/BF00238617.
The subcortical projections to the lateral geniculate body (LGB) in the rat were studied by means of discrete HRP iontophoretic deposits in the dorsal or the ventral LGB; the labelling was compared to that resulting from HRP deposits in neighboring nuclei. After injecting HRP in the dorsal LGB, labelled cells appeared bilaterally in the ventral LGB, pretectum, superior colliculus, lateral groups of the dorsal raphe nucleus and locus coeruleus. Ipsilaterally, labelled cells were found in the lateral posterior thalamus, nucleus of the posterior commissure and deep mesencephalic reticular nucleus. After injecting HRP into the ventral LGB, labelled cells were observed bilaterally in the pretectum, superior colliculus and dorsal raphe nucleus (lateral groups). Contralateral labelling appeared in the ventral LGB and parabigeminal nucleus. Ipsilateral labelling was found in the zona incerta, lateral posterior thalamus, lateral and medial mesencephalic reticular formation, vestibular and dorsal tegmental nuclei. These findings provide evidence of subcortical projections to the LGB arising in visually-related areas as well as extravisual areas, which might be related to the LGB boutons that survive complete cortical and retinal ablations.
通过在大鼠背侧或腹侧外侧膝状体（LGB）中进行离散的辣根过氧化物酶（HRP）离子电渗沉积，研究了向LGB的皮质下投射；将标记结果与相邻核中HRP沉积产生的标记结果进行比较。在背侧LGB注射HRP后，标记细胞双侧出现在腹侧LGB、顶盖前区、上丘、背侧中缝核外侧群和蓝斑。同侧，在丘脑外侧后核、后连合核和中脑深部网状核中发现标记细胞。在腹侧LGB注射HRP后，双侧在前庭前区、上丘和背侧中缝核（外侧群）中观察到标记细胞。对侧标记出现在腹侧LGB和副视束核。同侧标记出现在未定带、丘脑外侧后核、中脑外侧和内侧网状结构、前庭核和被盖背核。这些发现为来自视觉相关区域以及视觉外区域的向LGB的皮质下投射提供了证据，这可能与在完全皮质和视网膜切除后仍存活的LGB终扣有关。
