NEW YORK (Reuters) - Nighttime dreams in which you show up at work naked, encounter an ax-wielding psychopath or experience other tribulations may become a thing of the past thanks to a discovery reported on Sunday.
Applying electrical current to the brain, according to a study published online in Nature Neuroscience, induces "lucid dreaming," in which the dreamer is aware that he is dreaming and can often gain control of the ongoing plot.
The findings are the first to show that inducing brain waves of a specific frequency produces lucid dreaming.
For the study, scientists led by psychologist Ursula Voss of J.W. Goethe-University in Frankfurt, Germany, built on lab studies in which research volunteers in the REM (rapid-eye movement) stage of sleep experienced a lucid dream, as they reported when they awoke.
Electroencephalograms showed that those dreams were accompanied by telltale electrical activity called gamma waves.
Those brain-waves are related to executive functions such as higher-order thinking, as well as awareness of one's mental state. But they are almost unheard of in REM sleep.
Voss and her colleagues therefore asked, if gamma waves occur naturally during lucid dreaming, what would happen if they induced a current with the same frequency as gamma waves in dreaming brains?
For the rest of the story: http://www.businessinsider.com/r-to-sleep-perchance-to-control-your-dreams-2014-11