Brain activity shows basis of near-death experiences
WASHINGTON (AFP) - There may be a scientific explanation for the vivid near-death experiences, such as seeing a shining light, that some people report after surviving a heart attack, US scientists said on Monday.
Apparently, the brain keeps on working for up to 30 seconds after blood flow stops, according to a study published in the Proceedings of the National Academy of Sciences.
University of Michigan scientists did their research on nine lab rats that were anaesthetised and then subjected to induced cardiac arrest as part of the experiment.
In the first 30 seconds after their hearts were stopped, they all showed a surge of brain activity, observed in electroencephalograms (EEGs) that indicated highly aroused mental states.