Dr, Mabuse;
This is a direct rebuttal to your post but also addresses points raised by
Mazulu,
CCDan and
Auraca.
The human brain is without a doubt the most complex organ on the planet. It is not, however, unique. It's progressed.
The brain is a layered. One evolutionary stage upon the next. We literally have a cat-like brain upon which the higher functions is layered. A lizard and a bird brain too.
Like a city, that has bridges, tunnels, railways and roads, each development is layered over the previously used.
So, you had wagons and horses in the old days. Steam locomotives, ferries and dirt roads. As society progressed, we replaced ferries with bridges. Steam with diesel-electric and dirt roads with pavement.
Not so with the brain.
If the brain was analogous to this city, there would be carriages and Ferrari's sharing roadways. Ferries running across alongside bridges. Steam thundering the rails alongside bullet trains and horses. Every bit of the brain gets used. Primitive and modern.
In evolution, an advantage is an advantage. However, as long as something works well enough to survive, that's all that is needed. Ability to survive is the impetus, not improvement. The physiology of a slug may not be the most advantageous- but the slug was still
able to survive and reproduce and so- it is here to be seen. So there needs be no evolutionary advantage to the way our brain is structured other than that it functions long enough for the species to breed.
This co-reliance on modern brain and primitive brain is a large part of what makes our own brain confusing. It leads to pareidolia, superstition, instinctive and programmed behaviors as well as modern intuition, resourcefulness, intelligence and rational thought. All together in one organ.
So why is it when you get knocked out by a punch or baseball striking your noggin, you remember nothing? Yet someone near death will experience another thing entirely?
Because the brain is that complex- there are a great many factors involved and they all play significant roles.
Let's examine the dorsolateral prefrontal region.
We'll start with a quick Wiki:
http://en.wikipedia.org/wiki/Dorsolateral_prefrontal_cortex
For you scientifical types, here's some hard shit:
http://www.sciencemag.org/content/288/5472/1835.short
Our primitive brain layer?
http://www.springerlink.com/content/f9xu683yrpkg5jbc/
Ok, tell me if I'm wrong but, why is this important?
I mean, this part of the brain is only active when awake, not when a person is asleep, right? It shouldn't be an issue!
Not always... It does activate when the brain is asleep if the conditions are right.
http://psycnet.apa.org/psycinfo/2002-04142-004
And it's when it's active while sleeping that interesting things happen.
Ok hang on! I got a question. S'rsly...
Ok, fine. In depth articles. Sorry.
Well, here's the short of it. When a boxer is knocked out, the brain gets shut down to a reboot state, including all the regions that are normally active when awake.
However, in anesthesia induced comas, medical comas and near death brain trauma, this doesn't always happen. It happens maybe half the time. Maybe a little less.
A boxer can and on rare occasions, does experience an NDE like experience or an Out of Body experience. Unconscious is not always unconscious.
The rest of the time, the awake mind is functioning even when sensory regions are shut down. This can also happen when melatonin did not induce sleep or serotonin is present in a brain not awake. This often leads to lucid dreaming, night sweats or night terrors (Where you're in between asleep and awake- you may feel paralyzed, yet not asleep. You may have trouble breathing, hear strange noises or voices in this state but be unable to move or call out.)
There is a profound difference between the two- again,
something a neurosurgeon should be well aware of all these factors.
That our fanciful good doctor here has neglected all of these details demonstrates just how 'human' he is. Given to irrationality and desire. It's also intellectually dishonest of him. He's neglecting the facts to promote his own agenda.
http://www.prweb.com/releases/near-death/experience/prweb9213606.htm
Ruh Roh!
It seems that well understood medical principles still come into play, no matter how often we can point out we do not fully understand the human brain. We cannot reject or ignore what we do know. Nor can we claim we know nothing at all.
Mazulu
You just totally contradicted yourself. You agree that there is no consistency:
Why wouldn't the afterlife be culturally driven? When I die, I would be culturally shocked to have a bunch of lions and moose showing up, welcoming me to the African spirit world.
And then you say it is consistent:
No consistency? Why do you have to be intellectually dishonest? Tunnels, floating above your body, light, meeting relatives, friends, angels, deity. That sounds pretty consistent to me. I bet their are African tribesmen who have NDE's of their relatives.
Make up your mind.
Next weeks episode: How to use Mind Zonking Drugs to induce NDE's, OBE's and possibly naked face gobbling...