is that it's rich in dopamine neurons.

这个区域有丰富的多巴胺神经元
When you're looking at the brain of someone

如果你观察
consuming a drug of abuse like cocaine

正在滥用药物比如滥用可卡因的人
or see it consuming something like a milkshake,

或者正在喝奶昔的人的大脑
you'll see that this area of the brain lights up

你会看到大脑的这个区域活动活跃
in response to this very rewarding and pleasurable activity.

作为对这令人愉快的行为的响应
We're here with our friend the rat.

这是我们的大鼠朋友
The poor rat he's just--

这可怜的大鼠只是
we've been using him to be addicted to food

我们使它对某种食物上瘾
and this is really, really where our framework is coming.

以之作为我们研究框架
You can see this guy, he's a little chunky,

你们看这有点矮胖的家伙
and he's gotten some time to really be exposed to a lot of sugar.

它在一段时间内被喂食了大量的糖