纪录片《你喝多了吗》 第30期：酒精激活脑电波（在线收听）

You just get a subject to take a glass of alcohol

就是拿起了一杯酒

and you could I suppose find out whats going on.

然后喝下去 看看会怎么样

But it isn't that straightforward is it?

但不是那么简单 对吧

No its not and as you say

当然不是 就像你说

its critical to understand

关键是搞明白

what really happens in the brain as alcohol hits it.

酒精进入大脑后究竟起了什么作用

And yet the nature of the drug

然而 毒品的性质

is such that it's been very difficult.

让检验变得困难

For any given amount consumed the normal way

无论服用多少量

the amounts in the blood will vary about three-to four-fold.

血液里的含量总是会有三到四倍的差别

So you can imagine if

所以你可以想象

we would like to do functional brain imaging

我们想要进行功能性大脑呈像

and visualise what brain circuits are activated

观察脑电波如何被激活

it really is almost impossible.

这真的几乎不可能

What the team did was to come up with a new technique.

这个团队所做的就是提供一种新技术

They would administer the alcohol intravenously

通过静脉注射酒精

so that my brain would receive a precise amount

使得大脑可以接受确定量的酒精

regardless of my metabolism or body size.

而新陈代谢或胖瘦不会对其产生影响

If you drink it

如果你直接喝的话

the amount in the blood for any given amount that is consumed

血液酒精含量

is extremely variable depending on people's

因为人们的体重 性别

body weight gender many other things.

还有很多其他因素而太多变了