Hippocampus slices from the knock-out mice responded much more strongly to an electrical stimulation, supporting the finding that the mice were more prepared to learn.

• 从敲除掉基因的小鼠海马部切除的组织对电刺激的反应更加强烈，这一事实也支持（转基因）小鼠学习能力更强的研究结果。