Childhood amnesia is a normal part of brain development.

童年失忆症是大脑发育的正常现象。

Nobody knows why childhood amnesia occurs.

没有人知道为什么会出现儿童期健忘症。

This leads to a puzzle where there's considerable scientific debate over the case of childhood amnesia.

这导致了一个谜题，关于儿童失忆症的案例存在相当多的科学争论。

The phenomenon is known as 'childhood amnesia', a term coined by the father of psychoanalysis, Sigmund Freud.

这种现象被称为“ 童年失忆症” ， 这是精神分析之父西格蒙德·弗洛伊德创造的一个术语。

And the case of childhood amnesia is--doesn't refer to when a child gets brain damage and gets amnesia.

儿童失忆症并不是指儿童因脑损伤而失忆。

For a long time, scientists thought childhood amnesia occurred because the brains of young children simply couldn't form lasting memories of specific events.

长期以来，科学家们认为童年失忆症是因为幼儿的大脑根本无法形成对特定事件的持久记忆。

Some scientists also believe that as we get older, our childhood memories fade and after the age of seven, we get some kind of 'childhood amnesia'.

一些科学家还认为，随着年龄的增长，我们的童年记忆会逐渐消失，七岁之后，我们会患上某种“童年健忘症”。