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The Night Side of Consciousness

Our brain goes through different stages of consciousness during the night.

03.09.2025

1. Glossary

Lucid dream

During a lucid dream, the dreamer is aware of their state and able to control their actions. Although Aristotle reported on this phenomenon and up to 80 percent of all people say they have had lucid dreams, sleep researchers doubted the existence of this phenomenon until the end of the 1960s. Most observations of lucid dreams originate from the REM sleep phase. Scientists have found that lucid dreams are associated with altered activity in the prefrontal cortex, which is responsible for the critical evaluation of events. Lucid dreaming can be learned and is now also used in therapy, for example in the treatment of nightmares.