So the first thing we did was, we compared, what's different in the brain of someone with depression and someone who is normal, and what we did was PET scans to look at the blood flow of the brain, and what we noticed is that in patients with depression compared to normals, areas of the brain are shut down, and those are the areas in blue.
我们做的第一件事情是，比较 抑郁症患者的脑部 和正常人脑部的不同之处， 我们通过正电子发射层析扫描来查看脑部血流的流向， 我们注意到抑郁症患者 与正常人相比较， 脑部某些地方停工了， 这些地方呈现蓝色。