![]() ![]() "Through generating brain oscillations involved in memory retrieval, the brain may be playing a last recall of important life events just before we die, similar to the ones reported in near-death experiences," Zemmar suggested. These brain waves signal everything from what we experience when we’re asleep to the activity during a state of alertness, according to the Sinha Clinic, an Illinois-based clinic offering neuropsychiatric treatment. Changes were also observed in others such as delta, theta, alpha, and beta oscillations. In the new research, changes were observed in the so-called gamma oscillations. This includes concentrating, dreaming, meditation, memory retrieval, information processing and conscious perception - similar to those associated with memory flashbacks. The different types of oscillations, including gamma, are involved in high-cognitive functions, researchers said. Just before and after the heart stopped working, the team noticed changes in a specific band of brain waves - referred to as neural oscillations. "We measured 900 seconds of brain activity around the time of death and set a specific focus to investigate what happened in the 30 seconds before and after the heart stopped beating," said Zemmar, a neurosurgeon at the University of Louisville, who organized the study of the recording. But during these recordings, the patient had a heart attack and passed away, according to the statement.Īs a result, scientists recorded the activity of a dying human brain for the first time ever, the study authors said. The findings were somewhat accidental, in that an 87-year-old patient who developed epilepsy underwent electroencephalography (EEG) to detect the seizures.
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