2023-05-02 05:28:00
The fact that these testimonies have many points in common and come from people with varied backgrounds and origins suggests a potential biological mechanism that is still mysterious to scientists.
In an article published Monday in the journal Proceedings of the National Academy of Sciences (PNAS), researchers at the University of Michigan, in the United States, noted surges of brain activity in two dying patients.
This study is not the first of its kind but is “more detailed than any before,” its lead author, Jimo Borjigin, told AFP.
The scientists studied the records of four patients who died of cardiac arrest while their brain activity was measured by electroencephalography (EEG).
These people were in a coma and their doctors had decided to stop treatment because they could no longer be saved.
When they were disconnected from their life support devices, two of them (a 24-year-old woman and a 77-year-old woman) saw their heart rates increase.
Their brain activity also showed a spike in gamma waves, associated with consciousness. A phenomenon that had already been observed by other studies.
This new article goes further, examining more of the part of the brain that has been stimulated, a posterior area associated with consciousness.
“If this part of the brain is stimulated, it means that the patient sees something, can hear something and can potentially feel sensations outside their body”, explained Jimo Borjigin, adding that this area was “on fire”.
Scientists aren’t sure why these signs weren’t seen in the other two patients. Their history of seizures may have had an impact, according to Jimo Borjigin.
As the study was conducted on a very small sample, general conclusions cannot be drawn, the authors warned.
And, since the patients are deceased, we will never know whether or not they had visions.
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