Lucid dreams are the experience of being conscious while dreaming. Most of us can only remember our dreams when we wake up. Many people achieve lucidity for a moment or two before waking up. But some people regularly have lucid dreams, in which the world around them seems tangible and real, and they are “awake”, and aware that they are dreaming.
Ursula Voss at the Goethe University Frankfurt has discovered a way to use electrical brain stimulation to induce lucid dreams. Kristoffer Appel at Osnasbrück University is now able to communicate with lucid dreamers inside their dreams. This might one day lead to new therapies for anxiety disorders.
One participant looked around his dream for something that might convey signals from outside. He was in a bus terminal, and spotted a ticket machine. Soon, it began to beep.
The article also contains instructions on how to achieve lucid dreams yourself.
New Scientist No. 3113, 18th February 2017, p. 32 – 35.