(electronic newspaper) There are still many questions regarding what happens in the body when a person dies.
In particular, there is a lot of uncertainty about what happens in the brain, the phenomenon by which people who have near-death experiences see their lives passing by.
Now one can A new American study We’re one step closer to the answer, and it sheds new light on the phenomena that occur in the brain when the heart stops beating.
The body becomes alive after death
Remember to be revived
The study was based on 567 people in the United States and the United Kingdom, all of whom suffered a sudden cardiac arrest.
Not everyone survived, but of those who did, the study showed that 40% had memories of the resuscitation process.
Researchers claim to have been able to detect brain activity up to an hour after cardiac arrest.
– This is the first major study to show that memories and changes in the walls of the brain can be signs of so-called near-death experiences, says the head of the research group, Sam Parnia at the New York University Grossman School of Medicine.
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Life is a play
Eleven of the study participants reported memories or sensations indicating some form of consciousness when resuscitation was performed.
Six of the participants had what the researchers call “transcendental remembered experiences of the moment of death.”
“Maybe they’ve seen their lives pass by, or they’ve experienced coming to a place that feels like home,” Parnia explains.
Some participants described dream-like experiences, such as memories of being chased or seeing a light or a family member, Parnia explains to NBC.
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Researchers believe this happens because the brain regresses in such extreme situations. In other words, he loses inhibition, which, according to the researchers, gives him access to all stored memories.
– Elimination is usually used in the context of loss of inhibitory control of a neuron over other neurons. This can happen if the inhibitory neuron itself is inhibited. The term disinhibition can also be used at a more general level as a lack of inhibitory control, as Martin Sivertsen-Mikland explains.
He is a physician and researcher in the Department of Neurology at NTNU.
For the first time: Scientists record what happens in the brain when we die
– Should be considered speculation
Sivertsen-Micland has followed up on the study, but lacks further clarification from the American researchers.
Loss of charge across the cell membrane when brain cells die, or receive too little oxygen, can lead to disinhibition in the brain, the researchers wrote. They suggest that this could activate signaling pathways related to the experiment described above, as Nettavisen told and continued:
– They have not explained why this mechanism is supposed to explain the phenomenon, and perhaps this should be considered speculative and not yet clear.
The study is also believed to be unclear when it comes to findings related to brain activity.
– It is an interesting observation to see different forms of electrical activity in the brain for a prolonged period during continuous CPR. The importance of this for brain function, consciousness and coping with cardiac arrest may still be somewhat unclear, Sivertsen-Mikland explains.
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