GotSteel
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ORIGINAL: http://www.huffingtonpost.com/2013/08/13/near-death-experiences-surge-activity-brain_n_3745339.html
About 30 seconds after the heart had stopped, all the animals experienced waves of synchronized brain activity that were characteristic of the conscious brain. Rats that were asphyxiated with carbon monoxide showed a similar pattern of brain activity.
The rats' visual cortex, which processes visual imagery, was also highly activated. This could shed light on why NDEs are so vivid, Borjigin said.
"They all show the fingerprints of neural consciousness at near-death is at a much higher level compared to the waking state. That explains the realer-than-real human experience," Borjigin told LiveScience.
The team believes that this electrical surge may be a mechanism the brain uses to rescue itself from a sharp drop in glucose and oxygen. Though it may not work for animals in cardiac arrest, Borjigin speculates that this mechanism spurs alertness or hyperawareness in less critical situations.
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