声音线索或能将睡眠转化为问题解决工具

In a study of lucid dreamers, people who are aware that they’re dreaming while it’s happening, playing soundtracks linked with unsolved puzzles helped the sleepers solve the problems the next day, researchers report in Neuroscience of Consciousness. Stories of brilliant insights after a nap or daydream abound, but scientists have struggled to successfully influence people’s dreams and rigorously test the idea. “This study provides one of the first experimentally grounded demonstrations of such a link,” says cognitive scientist Giulio Bernardi of IMT School for Advanced Studies Lucca in Italy, who was not involved in the work. Whether or not we remember our dreams, we have countless each night, says cognitive neuroscientist Karen Konkoly of Northwestern University in Evanston, Ill. …