Does lucid dreaming exist

In the 1970s, British psychologist Keith Hearne conducted the first study using polysomnography to determine whether lucid dreams exist. He objectively confirmed their existence.

American psychophysiologist Stephen LaBerge continued Hearne’s work. In 1980, LaBerge completed his dissertation, Lucid Dreaming: An Exploratory Study of Consciousness during Sleep. He used polysomnography and other methods to confirm the presence of consciousness during sleep and demonstrated that lucidity occurs specifically during the REM (rapid eye movement) sleep phase.