Sefton A J, Mackay-Sim A, Baur L A, Cottee L J
Brain Res. 1981 Jun 29;215(1-2):1-13. doi: 10.1016/0006-8993(81)90487-x.
We have investigated the relationships of the visual cortex to other visual centres in the rat: namely the lateral geniculate nucleus, the visually responsive part of the thalamic reticular nucleus and the superior colliculus. We injected horseradish peroxidase iontophoretically so as to restrict the injectate to each of the regions, and reacted sections using 3 different procedures. Areas 17, 18 and 18a project to both dorsal and ventral lateral geniculate nucleus as well as to the visually responsive part of the thalamic reticular nucleus and superior colliculus. Pyramidal cells in lamina VI project to the dorsal lateral geniculate nucleus and to the thalamic reticular nucleus, whereas cells of origin of the projection to the superior colliculus lie in lamina V; cells in lamina V also project to ventral lateral geniculate nucleus. The implications of these findings are discussed, particularly in terms of the functional relationships between the visual cortex, lateral geniculate nucleus and visual thalamic reticular nucleus.
我们研究了大鼠视觉皮层与其他视觉中枢之间的关系，这些中枢包括外侧膝状体核、丘脑网状核的视觉反应部分以及上丘。我们通过离子电渗法注射辣根过氧化物酶，以便将注射剂局限于每个区域，并使用3种不同的程序对切片进行反应。17区、18区和18a区投射到背侧和腹侧外侧膝状体核，以及丘脑网状核的视觉反应部分和上丘。第VI层的锥体细胞投射到背侧外侧膝状体核和丘脑网状核，而上丘投射的起源细胞位于第V层；第V层的细胞也投射到腹侧外侧膝状体核。我们讨论了这些发现的意义，特别是从视觉皮层、外侧膝状体核和视觉丘脑网状核之间的功能关系方面进行了讨论。
