And so, from the study of brain damage and the study of—

通过对脑损伤的研究
we can gain some understanding of what different parts of the brain do.

我们可以了解到大脑不同区域的功能
And So, people study brain damages—

所以人们研究脑损伤
brain damage that implicates

这些脑损伤能够引起
motor control such as apraxia.

诸如失用症这样的运动控制障碍
And what's interesting about apraxia is it's not paralysis.

有意思的是失用症并不是瘫痪
Somebody with apraxia can move,

失用症患者是可以行动的
do simple movements just fine

可以做简单的动作
but they can't coordinate their movements.

但是他们无法协调他们的动作
They can't do something like wave goodbye

他们无法做到诸如挥手再见
or light a cigarette.

或是点香烟这样的动作
There is agnosia

还有失认症