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Health

Scientists can communicate with people while they are asleep

Normally, we aren't particularly aware of the outside world while we sleep, but by playing certain sounds researchers were able to make sleepers smile or frown      

By Clare Wilson

17 October 2023

Communicating with people while they sleep may enable us to study dreaming

Fizkes/Shutterstock

Researchers have managed to communicate with people while they were asleep, which could open up new avenues for studying sleeping and dreaming.

In a small study, people occasionally made brief and partial smiles or frowns as they slept in reaction to certain words – and their responses were usually appropriate. They had no memory of what happened when questioned afterwards.

This is the first time that such communication has been established in those who aren’t one of a rare group of people who can control their dreams…

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