Delphine Oudiette is an Inserm research fellow at the Brain Institute (Paris).
While scientific advances have made it possible to better understand the world around us, from the infinitely small to outer space, our inner world remains largely mysterious.
In particular, we still don't know what's going on in our head when we sleep.
Only a few snatches of dreams remain on waking, fleeting witnesses that our mental world remains rich even when our eyelids are closed.
Do our dreams influence our waking life?
Altered states of consciousness
If dreams are central to psychoanalytic theories, they have long been shunned by neuroscientists, partly because studying them scientifically is a nightmare.
Indeed, researchers do not have access to the sleeper's dream at the time it is experienced.
Most often, they are based on dream reports collected after waking up.
Therefore, they do not study nocturnal experiences themselves, but…
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