Fujisawa H, Watanabe K, Tani N, Ibata Y
Brain Res. 1981 Feb 9;206(1):21-6. doi: 10.1016/0006-8993(81)90097-4.
The possibility of retinotopic organization of pathways of retinal fibers within the optic tract and the tectum of the frog was studied by selective labeling of the retinal fibers with horseradish peroxidase. Within the optic tract the pathways of the ventral, temporal and dorsal retinal fibers were ordered from the dorsal to ventral edges of the optic tract. The nasal retinal fibers ran along both the dorsal and ventral edges of the optic tract. The dorsal retinal fibers and the nasal retinal fibers which were located along the ventral edge of the optic tract entered the ventrolateral perimeter of the tectum and formed the lateral tract. The ventral retinal fibers and the nasal retinal fibers which were located along the dorsal edge of the optic tract entered the dorsomedial perimeter of the tectum and formed the dorsomedial tract. The temporal retinal fibers invaded the tectum directly at the diencephalo-tectal junction. The topography of fiber pathway observed for the frog was exactly the same as that seen in the newt, and seemed to be common to all amphibian species.
通过用辣根过氧化物酶对视网膜纤维进行选择性标记，研究了青蛙视束和顶盖内视网膜纤维通路的视网膜拓扑组织可能性。在视束内，腹侧、颞侧和背侧视网膜纤维的通路从视束的背侧边缘到腹侧边缘依次排列。鼻侧视网膜纤维沿着视束的背侧和腹侧边缘走行。位于视束腹侧边缘的背侧视网膜纤维和鼻侧视网膜纤维进入顶盖的腹外侧周边并形成外侧束。位于视束背侧边缘的腹侧视网膜纤维和鼻侧视网膜纤维进入顶盖的背内侧周边并形成背内侧束。颞侧视网膜纤维在间脑 - 顶盖交界处直接侵入顶盖。青蛙中观察到的纤维通路拓扑结构与蝾螈中所见完全相同，并且似乎是所有两栖类物种共有的。
