Brain scans, PET scans have become much simpler.

脑部扫描，PET 扫描，都变得比之前简单多了。

Now we have things like CAT scans, MRI scans, PET scans.

现在有Ct，核磁共振和Pet扫描。

I think we should do a PET scan. It's similar to an MRI.

我觉得我们要做一个断层扫描 跟磁共振类似。

Studies using imaging techniques like CAT scans, PET, and fMRI, illustrate that different parts of the brain are active during different parts of mental life.

使用 CAT 扫描、PET 和 fMRI 等成像技术的研究表明，大脑的不同部分在精神生活的不同部分是活跃的。