![]() They only found one similar study on rats in which scientists induced cardiac arrest in the animals while measuring their brain activity. It took his team of colleagues from around the world five and a half years to publish the study in part because they were waiting to see if any other similar cases cropped up. These patterns are associated with concentration, dreaming, meditating, memory retrieval, and flashbacks, ZME Science reported. ![]() The EEG showed that, 15 seconds before the patient's heart stopped beating, he experienced high-frequency brainwaves called gamma oscillations, as well as some slower oscillations including theta, delta, alpha, and beta. No healthy human is gonna go and have an EEG before they die, and in no sick patient are we going to know when they're gonna die to record these signals," Zemmar said. "This is why it's so rare, because you can't plan this. But before they could determine the appropriate treatment, the man went into cardiac arrest and died. The doctors, including Zemmar, removed the clot, but three days later, the man developed seizures.Īs is standard, Zemmar said, the medical team monitored the patient with an electroencephalogram, or EEG, to determine the root of the seizures. The paper traces back to 2016, when an 87-year-old man with bleeding between his skull and brain sought treatment at a Canadian hospital. Researchers captured the dying man's brain activity by rare chance What do you think about this? Tell us in the comments.įor more trending stories, follow us on Telegram.Account icon An icon in the shape of a person's head and shoulders. Making an experiment that mimics a near-death experience and monitoring the patient in a lab setting could be one way to do this. In order to increase the likelihood that some will actually live, Borjigin plans to gather information on hundreds more people in the future. ![]() The strength of the study was aided by second-by-second monitoring of the patient's heart and brain activity throughout the final few hours of life.Īlthough Borjigin theorised that the patients' prior seizure histories may have somehow primed their brains, it is unclear why two of the patients showed these potential "covert consciousness" symptoms while the other two did not.īecause of the tiny sample size, the authors advised against drawing broad conclusions.įurthermore, since the patients did not survive to tell the tale, it is impossible to confirm that they actually experienced any visions. "If this part of the brain lights up, that means the patient is seeing something, can hear something, and might feel sensations out of the body," said Borjigin, adding that the area was "on fire." The University of Michigan article went further by looking more closely at which areas of the brain lit up, with the activity discovered in the "posterior cortical hot zone," made up of the temporal, parietal, and occipital lobes, which are linked to changes in consciousness. The research studied brain activities closely at the time of death Two of the four patients, a 24-year-old woman and a 77-year-old woman, saw increases in heart rates as well as spikes in the gamma frequency of brain waves, the fastest type of brain activity that is linked to awareness.Įarlier research has also discovered increases in gamma waves in some individuals close to the time of death, including a well-known publication about an 87-year-old man who died after a fall that was published in 2022. The group reviewed the medical files of four patients who experienced cardiac arrest while receiving electroencephalogram (EEG) monitoring.Īfter it was decided that all four couldn't be saved by medical intervention, they all slipped into comas and were taken off life support. Researchers from the University of Michigan discovered evidence of spikes in brain activity connected to awareness in two terminally ill patients in a new study that was published Monday in the Proceedings of the National Academy of Science (PNAS).Īlthough not the first study of its kind, senior author Jimo Borjigin, whose lab is devoted to understanding the neurological underpinnings of consciousness, told AFP that the new research stands out because it is detailed in a way "that has never been done before." ![]()
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