New research finds intriguing brain wave patterns in comatose patients who died following cardiac arrest. Reports of near-death experiences—with tales of white light, visits from departed loved ones, hearing voices, among other attributes—capture our imagination and are deeply engrained in our cu
A small study has provided initial evidence of heightened activity in the brain during the process of dying, potentially related to consciousness. The research observed four patients in comatose states, following cardiac arrest, who were under EEG monitoring at the time of their deaths. In two of these patients, a surge of gamma wave activity, linked with consciousness, was recorded upon the removal of ventilator support.
The fact that these reports share so many common elements begs the question of whether there is something fundamentally real underpinning them—and that those who have managed to survive death are providing glimpses of a consciousness that does not completely disappear, even after the heart stops beating., provides early evidence of a surge of activity correlated with consciousness in the dying brain.
“How vivid experience can emerge from a dysfunctional brain during the process of dying is a neuroscientific paradox. Dr. Borjigin has led an important study that helps shed light on the underlying neurophysiologic mechanisms,” said Mashour. Furthermore, the activity was detected in the so-called hot zone of neural correlates of consciousness in the brain, the junction between the temporal, parietal and occipital lobes in the back of the brain. This area has been correlated with dreaming, visual hallucinations in epilepsy, and altered states of consciousness in other brain studies.
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