Researchers tried to figure out the nature of the visions that occur during clinical death. As you know, many associate this phenomenon with the “afterlife”.
Clinical death is a reversible stage of dying, a transitional period between life and biological death. At this stage, the activity of the heart stops, as well as the breathing process. You can observe the disappearance of all external signs of the body's vital activity. During clinical death, sometimes strange phenomena are recorded, which science cannot yet fully explain. A number of people, after regaining consciousness, recalled that they "flew" over their own bodies. Others claimed to have interacted with deceased relatives. One of the attributes of such a phenomenon may be a tunnel with a bright light, as if attracting a person to itself.
But what is the nature of all this? A team of researchers led by Belgian neurologist Steven Laureys has come close to answering this question. Scientists analyzed the testimony of 400 people who survived clinical death. Based on the data obtained, Lowrace and his colleagues concluded that at the time of clinical death there is a stormy "neurological" life of the brain, which shows a kind of "movie" with repetitive moments. “What we found suggests that people who are in a coma and appear lifeless to us can lead a rich neurological life,” says Lowrace. According to scientists, this kind of vision can be a product of the activity of the subconscious.
According to the results obtained, during the experience of visions, there is an activation of the brain area at the junction of the temporal and parietal lobes. An important conclusion of the researchers was that this kind of condition can be caused artificially. In this case, hyperventilation and a quick change of posture can come to the rescue. According to scientists, the visions that have been observed by people who have experienced clinical death can be encountered by climbers or pilots of airliners. For example, some pilots felt that they were outside their plane.
Scientists do not want to stop there and intend to conduct a number of experiments. So, they want to connect a diver from France Guillaume Neri to brain scanners and analyze his work while holding his breath.