The concept behind the movie 'Inception' may not be as far-fetched as some would believe. The tACS device (transcranial alternating current stimulation) is a step closer to actively controlling dream plots. The tACS device delivers harmless electric shocks that put sleepers into a state of lucid dreaming, a type of sleep that exists somewhere between rapid eye movement (REM) sleep and wakefulness.
Developed by a team of researchers at the J.W. Goethe University in Frankfurt, Germany, tACS device stimulates the brain’s frontal and temporal areas. Just 30 seconds of exposure resulted in lucid dreaming. Dvice writes, "Not only did [participants] report that they had seen themselves "from the outside," but they also stated that they knew they were dreaming while asleep."
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