and many of them are implicated in interesting psychological processes

它们中的许多都会参与到心理活动之中
but where the action is is the cortex.

但其实真正的反应则发生在大脑皮层
Isn't this beautiful?

是不是很漂亮
The cortex is the outer layer

大脑皮层是大脑的外层
and the outer layer is all crumpled up.

上面布满了褶皱
Do you ever wonder why your brain looks wrinkled?

你们有没有想过大脑为何会满是褶皱
That's because it's all crumpled.

这是因为大脑被挤在一起变得褶皱了
If you took out somebody's cortex

如果你取出某人的大脑皮层
and flattened it out,

把它摊开
it would be two feet square,

会有两平方英尺那么大
sort of like a nice--like a rug.

有点像一张地毯
And the cortex is where all the neat stuff takes place.

大脑皮层是所有奇迹发生的地方