How electric currents can help sleepers control their dreams
New technique could be used to help people with PTSD who have recurring nightmares, say scientists
SCIENTISTS in Germany have developed a way for people to control their own dreams: electric currents pumped directly into the brain.
Researchers at the JW Goethe University in Frankfurt have been zapping volunteers with electric currents as they sleep to increase gamma brainwave activity.
The results found that this increased "lucid dreaming", in which the person becomes aware that they are asleep and can gain some element of control over their dream. "For example, the dreamer could make a threatening character disappear or decide to fly to an exotic location," explains New Scientist, comparing the findings to the Leonardo DiCaprio film Inception.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
The Frankfurt team studied 27 sleeping volunteers, subjecting them to electrical stimulation at different frequencies ranging between two and 100 hertz for two minutes, or a treatment that had no effect on the brain. The participants were then woken up and asked to rate their dream consciousness.
Lucid dreaming increased when volunteers received stimulation at a frequency of 40 hertz, which caused an increase in gamma brainwave activity. Much higher and lower frequencies of stimulation, outside of the gamma range, had no effect on lucid dreaming.
The research, published in Nature, suggests the gamma wave moves back and forth between the primary consciousness, which relates to simple emotions and sensory perceptions, and the secondary consciousness, which involves being aware that we are aware.
The findings are the first to show that inducing brain waves of a specific frequency produces lucid dreaming, reports Reuters.
The team, led by Dr Ursula Voss, hopes that the technique might help people with post-traumatic stress disorder who suffer with recurring nightmares. "Perhaps by triggering lucid dreaming, people with PTSD can take control of their dreams and make them less frightening. That's what we are looking at now," said Voss.
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
-
Today's political cartoons - November 23, 2024
Cartoons Saturday's cartoons - qualifications, tax cuts, and more
By The Week US Published
-
Long summer days in Iceland's highlands
The Week Recommends While many parts of this volcanic island are barren, there is a 'desolate beauty' to be found in every corner
By The Week UK Published
-
The Democrats: time for wholesale reform?
Talking Point In the 'wreckage' of the election, the party must decide how to rebuild
By The Week UK Published
-
Has the Taliban banned women from speaking?
Today's Big Question 'Rambling' message about 'bizarre' restriction joins series of recent decrees that amount to silencing of Afghanistan's women
By Harriet Marsden, The Week UK Published
-
Cuba's energy crisis
The Explainer Already beset by a host of issues, the island nation is struggling with nationwide blackouts
By Rebekah Evans, The Week UK Published
-
Putin's fixation with shamans
Under the Radar Secretive Russian leader, said to be fascinated with occult and pagan rituals, allegedly asked for blessing over nuclear weapons
By Harriet Marsden, The Week UK Published
-
Chimpanzees are dying of human diseases
Under the radar Great apes are vulnerable to human pathogens thanks to genetic similarity, increased contact and no immunity
By Harriet Marsden, The Week UK Published
-
Deaths of Jesse Baird and Luke Davies hang over Sydney's Mardi Gras
The Explainer Police officer, the former partner of TV presenter victim, charged with two counts of murder after turning himself in
By Austin Chen, The Week UK Published
-
Quiz of The Week: 24 February - 1 March
Puzzles and Quizzes Have you been paying attention to The Week's news?
By Sorcha Bradley, The Week UK Published
-
Will mounting discontent affect Iran election?
Today's Big Question Low turnout is expected in poll seen as crucial test for Tehran's leadership
By Sorcha Bradley, The Week UK Published
-
Sweden clears final NATO hurdle with Hungary vote
Speed Read Hungary's parliament overwhelmingly approved Sweden's accession to NATO
By Peter Weber, The Week US Published