There are a lot of mystery novels where someone gets lost in the beginning. Then, in the middle of the story, his body was found. As can be seen, the murder case. The police's tone shifted. Our detectives predicted that this would happen from the beginning. What his sixth sense was saying was that the corpse was to be found.

Evidence of this is rare in the mystery novel Psychiatry. On the contrary, it seems that you have to shoot an arrow blindfolded where the target is fleeing. I don't know what I'm looking for, I don't even know if there are any problems at all.

Puzzles in psychiatry or psychiatry but a lot. First, we understand almost nothing about how the brain works. I started to get a glimpse of how some straightforward work is done. For example, what happens in the head when an object is seen, how to remember, how to find the way, some such process. The second problem that arises from this is the definition of mental illness. When I don't understand what normal brain activity is, it's not at all easy to tell who is abnormal. And the last problem is measurement. We do not have any instrument to measure the difference between mental health or brain activity.

This last problem, the problem of measuring brain activity, is why all research has come to a halt. It is important to be able to measure if you want to deal with a question.