Previous.
Near-death experiences (near-death experiences) have always been a topic of great curiosity among scientists and the general public.
One of the most interesting is the phenomenon of "flashback before death" -
When people are on the verge of death, they will unconsciously bring up major moments and memories of their lives in their minds, just like the "marquee" in a movie.
Many people who have had near-death experiences have claimed to have experienced this situation firsthand.
Recently, a study published in the international authoritative journal "Neurology" has once again aroused people's attention to this phenomenon.
For the first time, scientists accurately measured a patient's brain activity during cardiac arrest and confirmed that the patient did indeed experience a series of nerve-related brain wave oscillations in about 90 seconds before the experience.
These fresh data not only strongly confirm that the electrical activity of the brain before death is indeed extraordinary, but also strongly support the seemingly "magical" phenomenon of "flashback before death".
This article will use this observation to open a new discussion of "flashback before death" and re-examine the concept of death.
1. Is it really possible for a "flashback before death" to exist?
Recall, remorse, let go, accept......
When the end of life is approaching, these emotions will more or less spring up in everyone's heart.
It is precisely because of this feeling that people are curious about everything when they are on the verge of death.
Will his/her life really be fleeting in front of you?
Just like the plot in a movie, people recall a lot of partial memories in their lives in a dream-like state.
Of course, there are also many people who believe that the "marquee" that appeared before the experience is just a self-protection function of the brain when people are on the verge of life and death.
So, is the "marquee" a false wishful thinking, or is it a reality that there is a scientific basis?
Oscillates the brainwave signal of the "marquee".
Dr. Zemmar
Dr. Zemmar and researchers from many countries, including China, answer this question in a study published in Neurology.
After observing and recording the near-death process and brain wave signals of an 87-year-old patient, they first discovered the "recall brain wave" signal that was suddenly exerted at the time of death.
This case was performed by Dr. Ajmal Zemmar at the General Hospital of Waffin Treatment Centre, Vancouver, Canada.
It is reported that AJP is a patient suffering from idiopathic cardiac arrest (CA), and when the medical staff performed cardiac resuscitation for him, he was monitored by multi-string EEG around him.
Medical staff recorded the last 900 seconds of AJP's life during cardiac resuscitation using state-of-the-art EEG technology.
The study is also one of the world's most comprehensive and accurate records of brain activity in patients with cardiac arrest.
And in its final stage, in the EEG data, evidence was found for the first time that could prove that AJP had performed a quick review and retrieval of key events and memories in his life before his death.
This permanently obscure experience was recorded on the human brain for the first time, and it also provided scientists with evidence that the "marquee" that appeared before death was real.
As the EEG analysis deepened, the researchers also found that in the final stages of his death, AJP experienced an unexplained unexplained oscillation in his brain, which included many types of EEG vibrations, such as alpha, beta, delta, and gamma waves.
These EEG oscillations are important indicators of brain function and are an excellent choice for scientists to observe and study brain activity.
And this frequent change in brain activity, in the opinion of scientists, suggests that in the moment before his death, AJP's brain was in a special mode of memory work.
From the results of the study, scientists also deduced that during the last period of AJP's life before death, the brain has been rapidly replaying and retrieving important events and memories throughout his life.
This phenomenon is very much in line with what many people claim to be a "flashback before death".
Through this real-life example, we can clearly see that before the NDE, people's brain activity goes through a very different state, and they may consciously recall important episodes in their lives, which may also be a special feeling that many people experience when they are near death.
2. How to explain flashback before death?
From a scientific point of view, what is it that causes the brain to produce "marquee" memories?
To understand this phenomenon, we first need to understand how the near-death mechanism of the human brain works.
When a person is facing death, their brain undergoes a unique series of changes, all of which directly affect the brain's electrical activity.
In recent years, a series of research results have shown that when the human brain is close to death, its electrical activity becomes abnormally active, and this change also directly affects the work of specific areas of the brain, such as the hippocampus and prefrontal lobe.
These two areas correspond to short-term and long-term memory, respectively, and the abnormal activity of the brain during the near-death state causes both regions to enhance their work of connecting and interacting with each other.
It is precisely because of this complex change in electrical activity that the brain will have a very special working pattern during the near-death state, which in turn will trigger what people have called "flashback before death".
In this mode of brain activity, the brain quickly retrieves and replays important events and memories in life, which also means that people leave this world in a unique way to look back on their lives.
This also provides a new research direction for people to explore brain activity and death.
In addition to this explanation, scientists have proposed another explanation, which is a self-protection mechanism in the working mechanism of the human brain.
According to research, the abnormal working state of the brain when it is about to die may be a self-protection mechanism, in order to allow the brain to "rescue" the body as much as possible.
Because NDE can cause damage to the brain, the brain uses as many resources as possible to integrate, retrack, and retrieve all important information and memories to ensure that as many important memories as possible are preserved in any situation.
This self-protection mechanism also makes it possible for the human brain to recall important information to find possible solutions, which in turn increases their chances of survival.
This unique model of brain work is not only a perfect explanation for the so-called "flashback" before death, but also provides a scientific direction for people to better understand brain activity and the process of death.
3. Make people rethink the meaning of death and life
Explaining these near-death experiences through scientific phenomena allows us to re-examine death and the meaning of life more holistically.
For a long time, people have always been full of fear and distress about death, believing that death is the end and that everything will be reduced to nothingness.
However, with the development of science and technology and the change of world concepts, people have gradually discovered that death is not meaningless, but an inevitable cyclical process.
From a scientific point of view, the way the human brain works as it approaches death not only provides an opportunity for humans to better understand how the brain works, but also gives people a new understanding of the return of death to the natural cycle.
In the wider universe, the life of a human being may not be that important, but everyone is an integral part.
In the face of death, people look back on the important events and precious encounters of their lives, and also make them rethink the meaning and purpose of life.
Do people have their own mission in this world?
Does their life have meaning?
These questions will all come to their minds without exception, and the explanation of the death process through scientific phenomena has allowed people to find new directions to answer these questions.
In any case, people's understanding of death is constantly expanding, and this observation of "flashbacks before death" will certainly provide strong evidence for people to better understand death and explore the meaning of life.
The author believes that:
In the course of human evolution, we have been looking forward to solving the answer to the "mystery of death".
Whether it's about the "mystery of death" or about the phenomenon of "marqueeping", everything we do is to better understand how the human brain works, as well as to provide us with conclusions.
Behind each answer, there are countless interesting questions waiting for us to explore, and it is these countless interesting questions that constitute our love and desire for life.
And we also believe that with the continuous development and progress of science, one day we will be able to unravel the mystery of the "mystery of death".
At least in this issue, we have found more clues to this mystery, and we look forward to the day when we can bring this mystery to a successful conclusion.