Brain activity before death: Study pinpoints a 'hot zone' surge

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Brain activity before death: Study pinpoints a 'hot zone' surge
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A small study out of the University of Michigan offers evidence that an area of the brain associated with consciousness can experience a wave of activity for some people right before they die.

The study, published May 1 in the peer-reviewed Proceedings of the National Academy of Sciences, recorded the brain activity of four comatose patients who died from cardiac arrest while in hospital and under EEG, or electroencephalogram, monitoring.

Those two patients had previous reports of seizures but experienced none in the hour before their deaths."That peak of activity is suggestive that there's something going on that would be an experience that a person has as they pass away," CTV science and technology specialist Dan Riskin told CTV's "Your Morning" on Monday.

In the latest study, the researchers say they detected activity in the area between the temporal, parietal and occipital lobes in the back of the brain, a so-called "hot zone" associated with dreaming, visual hallucinations in epilepsy, and altered states of consciousness.

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