and primates have a lot

灵长类有很多
and humans have a real lot.

而人类的心理活动就非常多了
Eighty percent of the volume of our brain,

我们大脑容量的大约百分之八十
about, is cortex.

都是大脑皮层
And the cortex can be broken up into different parts or lobes.

大脑皮层可以被分为几种不同的脑叶
There is the--And, again, this is facing in profile forward.

再说一次这是面向前方的侧面示意图
There is the frontal lobe, easy to remember,

有额叶很好记
it's part in front,

是前面的部分
the parietal lobe,

顶叶
the occipital lobe, and the temporal lobe.

枕叶还有颞叶
And one theme we're going to return to is—

我们要再次重申的一点便是
this is half the brain.

这是半个大脑