A small amount of electrical current could be the key to letting people control their dreams. A new study led from the Goethe University Frankfurt has found that by applying current in certain frequencies to a sleepers scalp, just above the forehead, that person may be able to gain some control over their dreams. In particular, that control included allowing people, to some degree, to recognize that they were dreaming and to view the dream as if from a third-person perspective — traits that the researchers say qualify these as lucid dreams. Those studies had found that a certain electrical signal was stronger in the frontal and temporal parts of the brain during lucid dreams, and its that signal that this new research set out to recreate to determine whether it was the cause of lucid dreams, a byproduct of it, or something unrelated.