Khalil S H, Székely G
Acta Biol Acad Sci Hung. 1976;27(4):253-60.
The appearance of ipsilateral terminal degeneration in the thalamic visual centers is studied with the aid of the Fink-Heimer II technique in Xenopus larvae and postmetamorphic toadlets following unilateral eye removal. The youngest age at which degeneration can reliably be shown in the lateral geniculate complex (nucleus of Bellonci and corpus geniculatum thalami) was at stage 62, that is, 10-12 days before metamorphic climax. The whole compliment of the ipsilateral retinothalamic projection develops only in postmetamorphic toadlets, and it is much more abundant in Xenopus than in Rana species. The first appearance of the ipsilateral degeneration in the lateral geniculate complex coincides in time with the first ipsilateral visuotectal responses described by others. The possibility that the two phenomena may have a closer relationship than the mere time coincidence, is discussed.
在非洲爪蟾幼体和变态后的小蟾蜍中，借助芬克 - 海默尔II技术研究了单侧眼球摘除后丘脑视觉中枢同侧终末变性的出现情况。在外侧膝状体复合体（贝隆奇核和丘脑膝状体）中能够可靠显示变性的最小年龄是第62阶段，即变态高峰期前10 - 12天。同侧视网膜丘脑投射的完整形成仅发生在变态后的小蟾蜍中，并且在非洲爪蟾中比在蛙属物种中更为丰富。外侧膝状体复合体中同侧变性的首次出现与其他人描述的首次同侧视顶盖反应在时间上相吻合。文中讨论了这两种现象可能存在比单纯时间巧合更紧密关系的可能性。
