The latest discovery may help explain accounts from individuals who have had near-death experiences. Researchers looked at four patients who died from cardiac arrest.
The new study may help explain accounts from individuals who have had near-death experiences.
Doctors said they were beyond medical help and with the consent of their families, they were removed from the machines.As doctors removed the ventilators, they found two of the patients showed signs of an increased heart rate and a surge of gamma wave activity - which is the fastest brain activity associated with consciousness.
This is the junction between the temporal, parietal and occipital lobes in the back of the brain, an area which has been correlated with dreaming, visual hallucinations in epilepsy, and altered states of consciousness in other brain studies. Similar signatures of gamma activation were recorded in the dying brains of both animals and humans upon a loss of oxygen following cardiac arrest.Dr Nusha Mihaylova, a clinical associate professor in the Department of Neurology at the University of Michigan, admitted the activity was not detected from everyone in the study.
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