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People who are close to death often claim to have seen and experienced events such as a bright white light at the end of a long tunnel or meeting with lost family members or favorite pets. Despite the apparent supernatural nature of the experiences, science can explain what they take place and what they really are, say British scientists Neil Dagnall and Can Draftwater in an article published in the Conversation., According to Rt.
The life-death experiences are "a deep psychological event with mystical elements," explains the experts, remember that such a condition can be caused by physical or emotional pain, but also causes heart attack or traumatic brain injuries or even while Medication is practiced.
A third of people who have experienced the type of situation claim to have experienced common feelings such as sensation, psychic detachment of the body, rapid movements through a long dark tunnel to access a bright light, scientists say.
They emphasize that culture and age also play an important role. Thus, for example, many Indians claim to meet with Yama, Hindu god of death, while Americans tell them to Jesus. In addition, children often describe their friends and teachers.
In 2009, Neuroslistists Olaf Blanke and Sebastian Diuezés proposed two types of close-dead experiences. The first type is associated with the cases in which the right hemisphere of the brain is affected, resulting in an altered sensation of time and having the impression of flying. The second, which is bound to damage in the left hemisphere, is characterized by seeing or communicating with moods and hears voices, sounds or music.
Another important role played by the temporary lobes is that brain area is involved in the sensory information and memory processing, so that abnormal activity in the lobes can produce sensational sensations and perceptions.
Although there are several theories that try to explain to death experiences, get to the bottom of which it is difficult to say, say Dagnall and drinkwater. The emphasis that religious people believe that the episodes provide evidence that life exists next to death (in particular, the separation of the spirit of the body), while scientific explanations for the type of phenomena point to depersonalization are, as it is intended Sensation of being separated from the body.
Scientific author Carl Sagan suggested in 1979 that the stress of death produces a memory of birth, suggesting that the "tunnel" that people see is a new image of the birth canal.
Meanwhile, other researchers have experienced the experiences of cerebral anoxia, the lack of oxygen in the brain. In this sense, there are testimonies of air pilots that have experienced the loss of knowledge during rapid acceleration and described characteristics similar to death-related experiences, such as the tunnel vision. Oxygen locks can also trigger sediments of the temporary lab, causing hallucinations.
But the most widespread explanation is "The Moribund Brain hypothesis," a theory that adds that life-death experiences are hallucinations caused by activity in the brain as the cells start to die. However, this theory does not explain the full range of sensations that can be experienced in the episodes, such as extracurricular experiences.
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