I've been reading the special edition of
Scientific American titled "The Hidden Mind" (2002). It has some great articles about consciousness, the brain, sleep, emotions, etc. Here are some thoughts I'd like to share.
Movie-in-the-brain deals with the concept of consciousness and awareness. (The movie being the composite of sensory input and "self" being the ability to make sense of that input.). The evolutionary edge is or course the ability and incentive to react to alarm signals. "Evolution of self rewards awareness, which is clearly a survival advantage.". But what is the relation of the movie and "self":
Self-awareness is actually part of the movie and thus creates, within the same frame, the "seen" and the "seer", the "thought" and the "thinker". There is no separate spectator for the movie-in-the-brain.
SciAm: The Hidden Mind, pg 9
So our self-awareness is an illusion... But fear not, it only means that our self is coded as information, which should be considered just as "real" as our surroundings... which - based on quantum theory - is "only" information too (quantum bits).
Helsingin sanomat had a small
article about this too, referring to the work of Daniel C. Dennett. (Thanks for the link,
hoito.org.)
Dreams. Great article about the history of dream research of the current understanding of their meaning.
...dreams reflect an individual's strategy for survival. The subjects of dreams are broad-ranging and complex, incorporating self-image, fears, insecurities, strengths, grandiose ideas, sexual orietation, desire, jealousy and love.
SciAm: The Hidden Mind, pg 60
The unconscious (~= dreaming) works during REM sleep and is an old evolutionary feature. It's like an automated strategy planner dealing with any issues that are related to survival, including sosiological strategies.
Tightly related to this is the processing of memory, which is of course needed for strategy planning. RAM sleep also strenghtens the memory images stored during the day. I suppose sleep focuses on survival memories, but for humans "survival" includes day-to-day life issues. (What kind of a mobile phone to buy?)
I still have a few articles to read... I'll be back.