Well said Deborah. All these systems, logical thought, emotion, imagination, awareness, consciousness are highly interactive and it could be easy to lump them into the same category "brain stuff" but I agree they are quite distinct modes of operation.
I am personally not convinced that any of them reside in the physcial brain as such (or at least not only in the physical brain). I believe that is an illusion, although a powerful one. Yes, they interact with the brain (and the rest of the body) and the effect can be measured with MRIs and EKGs and so forth. I see no contradiction in the fact that meditation - an activity of the mind/ consciousness/ imagination - can have a measurable effect on the physical brain (and the rest of the body). Dancing ballet can have a physical effect on the body over a period of time. But we don't say that ballet is merely a product of the body though. Yes of course, in the most basic sense it is, but it is more complicated than that.
I agree with Charles that the physical brain is more like a radio receiver - the necesssary hardware to decode messages from the mind/soul/spirit and so on. I don't believe it is the author of thoughts, insights and awareness.
Obviously the brain fulfills an important function in keeping the bodily systems in order, releasing hormones, various chemicals and regulating breathing and heartbeat etc. but even in those functions I believe it 'answers to a higher authority'. This 'higher authority' - the soul, the consciousness, the awareness, the self - call it what you will *, survives the death of the physical brain. Damage or remove the brain and the body dies, but the 'self' goes on regardless. This 'self' is what retains the emotions, memories, longings and desires as you can see by reading all the stories people recount, including NDEs, not the brain.
Quintessence I am sorry, but I simply cannot agree that upon death we suddenly know everything and become ultimate beings on a par with God (however you conceive Her) or become, in fact, The Goddess (however you conceive Him) .
How then to account for the stories we hear of people attending meetings, training in schools, counsel sessions and so on with 'higher' beings and so on in the between life state? If we were all 'perfected' instantly upon death a) how would this be possible? b) what would be the purpose?
* I know there are theories about complex layers of spirit bodies, etheric bodies and such, but I am trying to keep it simple here.