Udin S B, Gruberg E R
Neurosci Lett. 1981 Dec 11;27(2):107-11. doi: 10.1016/0304-3940(81)90252-4.
The retina and nucleus isthmi both project in laminar fashion to the superficial layers of the frog's tectum. In order to determine whether isthmo-tectal axons show collateral sprouting after retinotectal input is removed, we injected [3H] proline into the nucleus isthmi and measured the volume of the crossed isthmo-tectal projection. We found no evidence of collateral sprouting.
视网膜和峡核均以分层方式投射到蛙视顶盖的浅层。为了确定在去除视网膜-视顶盖输入后峡核-视顶盖轴突是否会出现侧支发芽，我们将[3H]脯氨酸注入峡核，并测量交叉的峡核-视顶盖投射的体积。我们没有发现侧支发芽的证据。
