In the near future, technology may offer further ways of upgrading the brain’s sleep cycles. Memory consolidation is thought to occur during specific, slow, oscillations of electrical activity, so the idea here is to subtly encourage those brain waves without waking the subject. Jan Born, at the University of Tubingen, has been at the forefront of these experiments. In 2004, he found that he could help amplify those signals using transcranial direct current stimulation (tDCS), which passes a small electric current across the skull, successfully improving his subjects’ performance on a verbal memory test read more.______www.abacityblog.com/how-to-learn-while-sleeping/