General Article Death: how long are we conscious for and does life really flash before our eyes?

Topic Selected: Bereavement Book Volume: 407

Death: how long are we conscious for and does life really flash before our eyes?

Death is still a mystery. Shutterstock

Guillaume Thierry, Bangor University

The first time I reached past the sheer horror of the concept of death and wondered what the experience of dying may be like, I was about 15. I had just discovered gruesome aspects of the French revolution and how heads were neatly cut off the body by a Guillotine.

Words I remember to this day were the last of Georges Danton on April 5, 1794, who allegedly said to his executioner: “Show my head to the people, it is worth seeing.” Years later, having become a cognitive neuroscientist, I started wondering to what extent a brain suddenly separated from the body could still perceive its environment and perhaps think.

Danton wanted his head to be shown, but could he see or hear the people? Was he conscious, even for a brief moment? How did his brain shut down?

On June 14, 2021, I was violently reminded of these questions. I set off...

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