At death, important life events begin to unfold on the brain screen.

 A very important scientific study has examined the brain waves of dying people, and it can shed light on the information that shows the events of their lives become clear to people at the time of death.

Research has revealed patterns in the brain at the time of death that are similar to those formed when recalling dreams or old memories and challenge our understanding of the end of life.

The findings, published Tuesday in the journal Frontiers in Aging Neuroscience, also raise important questions about the timing of organ donation.

Neuroscientists, including Raoul Vicente of the University of Tartu in Estonia, initially examined the brain waves of an 87-year-old epileptic patient using an electroencephalography (EEG) device, but in the midst of the examination the patient suffered a heart attack. Fell and he died.

As soon as the patient's death occurred, the EEG recordings showed the person's brain activity was approximately 900 seconds, and scientists attempted to investigate which specific 30 seconds before and after the heart stopped beating. Activity occurred.

The results showed that when the person was dying, there was an increase in brain waves known as gamma vibrations, which are usually produced during dreaming and recalling something, as well as other As Delta, Theta, Alpha and Beta vibrations also increased.

The brain waves of living human beings are like ups and downs and different types of these waves are related to different situations.

Citing an example, the researchers said that gamma vibration is related to higher cognitive functions such as focusing, dreaming, meditating, recalling things and conscious perception.

And studies have also shown that alpha waves, which produce vibrations at a frequency of 8-12 Hz, help filter out sensitive information and focus.

Based on current knowledge of the activity of various brain waves, scientists speculate that the 87-year-old man who died may be "remembering the last time in his entire life."

The researchers wrote in the study, "Given that the process of cognition and memorization of a memory in a healthy person involves a combination of alpha and gamma waves, it is interesting to speculate that such activity near death is a 'memory of the end of life'." I can be helpful.

Ajmal Zameer, a neurosurgeon at the University of Louisville in the United States, said in a statement: Similar to the events reported in near-death experiments.