So, going back to religion, what are your thoughts?
I am an agnostic - Not much is known but there are many conflicting beliefs concerning post death events - most, if not all, must be wrong. I see no evidence for anything not decaying with the body. But as is often said: "absence of evidence is not evidence of absence," so I remain an agnostic.
Maybe consciousness is related to cortex <--> thalamus double checking, is THAT a reflex? The amygdala fires to the forebrain, causing "fear", is THAT a reflex?
As Chambers said "consciousness is the hard problem." I have a "crackpot" theory about perception, but none about consciousness, but I do suspect it too is generated in the parietal brain. The essence of my theory is that in parietal brain a Real Time Simulation, RTS, runs when we are awake or in dreaming state. The RTS is based on a slight forward in time projection of the sensory data. - This compensates for the neural delays. For example allows you to perceive where a fast moving ping-pong ball is now, not where it was several neural transmission and synaptic delays earlier. Occasionally, the world changes in unpredictable ways (e.g. hidden firecracker exploding) so the RTS is in error. That sudden drastic revision of the RTS, is reflected in the EEG signal p300, which is often called the "startle spike" (and known to be strongest over the parietal brain).
The parietal RTS is constantly self checking - sending its model of the world back to earlier points in the input sensory data streams, such as the thalamus , visual cortex, etc. which really make continuous difference analysis (between true sensory input signals and retro signals of the RTS model.) Few know it, but there are actually more retro neural fibers coming to V1 from parietal tissue than from the retina, via the LGN. Likewise there is huge set of retro fiber nerves from parietal brain to the thalamus. Why they should exist, what function they serve, etc. is total mystery to everyone accepting the standard theory but an essential need of my theory - When we are awake and acting on our perceptions, the RTS must be continuously checked against the incoming sensory data stream (and at as early a point in those input streams as is possible.) In the dream state, we do not act on our perceptions so this "checking with reality" is not needed, or done. Then "wild" impossible things can be perceived. My theory is consistent with dozens of other known facts which the standard theory of perception has no way to explain or even contradicts! - For example, in the dream state there are no sensory inputs for the perceptions to "emerge from." (Eyes are typically closed - yet you may perceive great visual danger, etc.)
Thus I am certain the standard theory of how perception is achieved is totally wrong. Perception does not "emerge" following many stages of neural computational transforms of the sensory input neural data streams. Each of these neural streams is "deconstructed" into separate aspects ("characteristics") which are further processed in well separated parts of the brain. There is zero evidence that these well separated computation result are ever re-joined in any part of the brain, yet perception is of a unified world - not a list of processed characteristics of the environment. The deconstruction into characteristics is done to permit this detail-by-detail checking. Much like pilot uses a detailed check list instead taking an integrated view of the plane and saying: "She looks OK to me."
Below is link discussing some of the multitude of known facts the RTS explains,* which the accepted theory cannot, and why the RTS evolved and allowed our smaller brained, physically weaker ancestors to rapidly kill off the Neanderthals who had no RTS, but perceived as the standard theory suggests. (I.e. they perceived thrown rocks and spears to be where they were a small fraction of a second earlier due to the neural processing delays.) I.e. in addition to many neurological and behavioral mysteries, my theory even explains the "Out of Africa" event, how we can play a fast game of ping-pong, etc. More on the RTS at:
http://www.sciforums.com/showpost.php?p=905778&postcount=66 This post does tell alot about the RTS, but is focused on how my theory may allow genuine free will to be consistent with the laws of physics and chemistry that deterministically control the firing of every nerve in the brain.
----------------
* I will here just mention two examples:
(1) Parietal strokes often produce "unilateral neglect" (Half the world ceases to exist for the victims, or is very poorly represented). That is an obvious expected result if what we perceive is the parietal constructed RTS, but not expected in the standard theory as none of the brain tissue processing the input sensory data stream has been adversely affected.
(2) Phantom limbs are very "real" to their victims - and should be if they are still part of the RTS but not actually existing, do not provide the normal input sensory streams for their perception to "emerge" from.
I wonder, lets suppose fear of death exists somewhere in the forebrain. If the forebrain has a "religion" pathway wired into this pathway, it may be that a brain with a religion pathway reduces the effects of the amygdala, reducing fear, and freeing up time the brain can do something else that's useful to the survival of the organism?
I suspect fear of death, if it exist in all, is just a generalization or component of fear of pain, fear of unpleasant events. The forebrain has some activities that can be considered to be contemplative of the various results real acts may have. I foreget who first described one of the more important survival benefits of consciousness as: “This contemplation of possible consequences of acts allows our hypotheses to die instead of us.” Most are aware that they will someday die, and that there may be many days of pain preceding death. Naturally there is fear of death. As there is nothing humans can do to prevent eventually dying, and religions do offer a denial mechanism for this unpleasant reality, they are popular. I understand “fear of death” and the popularity of a postulated escape / denial of death this way, not as some “fear of death” neural circuits in the forebrain sending “calming” signal to the amygdale.
Fear of death seems to be created by contemplation, not innate. Many years ago (pre-SPCA) the keeper of the dog pound ran out of funds to feed the dogs. After a few days of them not eating, he knew he had to kill them all. They liked him as only he feed them. He drove stakes in a uniformly spaced circle and tied with short rope one dog to each stake. Then took his position at the center of the circle each time before killing each dog – I.e. from the center of the circle he walked directly to the dog and smashed its head with a baseball bat, then returned to the center of the circle. Every hungry dog, even the last to die, was wagging its tail as he approached, - glad to see him coming! One cannot be sure what “thoughts” were in the head of a dog the second before its head was smashed, but certainly their behavior suggest “hope for some food” from its regular feeder and zero fear of death.