Does our life flash before our eyes during death?

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Neuroscientists have recorded the exercise of a dying human mind and found rhythmic mind wave patterns across the time of demise which might be just like these occurring throughout dreaming, reminiscence recall and meditation. Now, a examine on these findings printed in Frontiers in Ageing Neuroscience brings new perception right into a doable organizational function of the mind throughout demise and suggests a proof for vivid life recall in near-death experiences.
Think about reliving your whole life within the house of seconds. Like a flash of lightning, you might be outdoors of your physique, watching memorable moments you lived by. This course of, often called “life recall,” will be just like what it is prefer to have a near- expertise. What occurs inside your mind throughout these experiences and after demise are questions which have puzzled neuroscientists for hundreds of years. Nevertheless, a brand new examine means that your mind might stay lively and coordinated throughout and even after the transition to demise and should even be programmed to orchestrate the entire ordeal.
When an 87-year-old affected person developed epilepsy, Dr. Raul Vicente of the College of Tartu, Estonia and colleagues used steady electroencephalography (EEG) to detect the seizures and deal with the affected person. Throughout these recordings, the affected person had a and handed away. This sudden occasion allowed the scientists to report the exercise of a dying for the primary time ever.
Findings ‘problem our understanding of when precisely life ends’
“We measured 900 seconds of mind exercise across the time of demise and set a selected focus to research what occurred within the 30 seconds earlier than and after the center stopped beating,” stated Dr. Ajmal Zemmar, a neurosurgeon on the College of Louisville, US, who organized the examine.
“Simply earlier than and after the center stopped working, we noticed modifications in a selected band of neural oscillations, so-called gamma oscillations, but in addition in others similar to delta, theta, alpha and beta oscillations.”
Mind oscillations (extra generally often called “mind waves”) are patterns of rhythmic mind exercise usually current in dwelling human brains. The various kinds of oscillations, together with gamma, are concerned in high-cognitive capabilities, similar to concentrating, dreaming, meditation, reminiscence retrieval, info processing, and aware notion, similar to these related to reminiscence flashbacks.
“By way of producing oscillations concerned in reminiscence retrieval, the mind could also be enjoying a final recall of essential life occasions simply earlier than we die, just like those reported in near-death experiences,” Zemmar speculated. “These findings problem our understanding of when precisely life ends and generate essential subsequent questions, similar to these associated to the timing of organ donation.”
A supply of hope
Whereas this examine is the primary of its sort to measure reside mind exercise through the strategy of dying in people, comparable modifications in have been beforehand noticed in rats saved in managed environments. This implies it’s doable that, throughout demise, the mind organizes and executes a organic response that could possibly be conserved throughout species.
These measurements are, nevertheless, based mostly on a single case and stem from the of a affected person who had suffered damage, seizures and swelling, which complicate the interpretation of the info. Nonetheless, Zemmar plans to research extra instances and sees these outcomes as a supply of hope.
“As a neurosurgeon, I cope with loss at instances. It’s indescribably tough to ship the information of demise to distraught relations,” he stated.
“One thing we might be taught from this analysis is: though our family members have their eyes closed and are prepared to depart us to relaxation, their brains could also be replaying a few of the nicest moments they skilled of their lives.”

Olfactory processing in three distinct neural waves

Extra info:
Raul Vicente et al, Enhanced Interaction of Neuronal Coherence and Coupling within the Dying Human Mind, Frontiers in Ageing Neuroscience (2022). DOI: 10.3389/fnagi.2022.813531

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Does our life flash earlier than our eyes throughout demise? (2022, February 22)
retrieved 22 February 2022
from https://medicalxpress.com/information/2022-02-life-eyes-death.html

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