Scientists explain the experience of consciousness after death

American doctors offered new explanations of near-death experience in survivors of cardiac arrest: a tunnel with white light at the end, communication with dead relatives and other experiences.

Stop air flow and glucose to the brain during cardiac arrest, unexpected way provokes a violent activity of the brain, a hallmark for running of consciousness, learned scientists. On a new study reported in the journal Proceedings of the National Academy of Sciences.

Doctors from the Institute of Michigan were subjected to asphyxia (suffocation) 9 rats. The condition of the animals was measured with a special device - the composition of the electrocardiograph and electroencephalograph.

It was found that within 30 seconds after the heart stops, the brain activity dramatically increases in the cortex is divided into several 10-s of neurotransmitters, increasing the brain waves of high frequency (gamma oscillations). Apparently, the result of these actions between the brain and the heart are installed new relationship: after a sudden deceleration of the heartbeat scientists noticed that the signals of the brain are in complete sync with the vibration of the heart.

To the amazement of scientists, the interruption of the inflow of signals from the brain to the heart they turned out to be considerably slow down the ventricular fibrillation is a quivering lower chambers of the heart, preventing him from pumping blood. Then even in the absence of air, the brain activity lasted.

If block 2 organs during cardiac arrest using pharmaceutical drugs seem able to increase the chances of survival of these patients, notice health workers. Previously it was believed that the lead role in the death of the body is the heart (cardiac blood flow deprives the brain of air).

Considering opinion of the authors of the study directly the feverish activity of the brain during cardiac arrest, and gives people the intense near-death experience and visions.

In 2014, another team of research workers checked that the consciousness at some level is maintained even after a complete shutdown of the brain. Workers from Southampton Institute in the 4 years analyzed more than 2 thousand patients who survived cardiac arrest in 15 clinics in Austria, England and the United States. 40 percent of the survivors spoke about the experience of consciousness during clinical death, prior to the resumption of cardiac activity.

sections: Society, World News