Sounds played as you sleep can reinforce memories, suggest Ken Paller and his colleagues at Northwestern University in Evanston, Illinois.
They asked people to memorise which images and their associated sounds – such as a picture of a cat and a miaow – were associated with a certain area on a computer screen and then to take a nap. They played half the group the sounds in their sleep, and these people were better at remembering the associations than the rest when they woke up.
Paller hopes sounds can be used to improve all kinds of memory and next he'll be figuring out if we can learn languages while we snooze.
Read More : http://www.newscientist.com/article/dn18199-sleep-success-how-to-make-zzzs--memory.html
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