…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?
…the 27 volunteers reported that they were aware that they were dreaming. The volunteers were also able to control the dream plot by, say, throwing some clothes on their dream self before going to work. They also felt as if their dream self was a third party whom they were merely observing.
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.