https://en.wikipedia.org/wiki/Bicameralism_(psychology) It's a difficult subject for me. I don't mean to wander, but some people think about mind, body, soul. Some find the seat of self in the heart. Some find it below the diaphragm. I don't think the mind is a function of the brain, or it's just difficult for me. I think the brain only supervises the mind in a mind-body relationship. It doesn't tell the mind what to think. It only gives permission for the mind to think, to be aware, to have consciousness. Maybe. But then the mind uses the brain as storage, and uses the body as vehicle. Vehicle for oxygen, movement, and action, but those are brain (body) functions. The brain tells the body to do things: Yawn, stretch, run, focus. So they share - it seems to me. To me they look like two different things, and my rationale is that if things appear different they probably are different. Could be that evolution has fogged up the notion so much that is isn't clear to me that they are indeed one thing. Like I say, It's a difficult subject for me.