Restoring Recall: Memories may form and reform, with sleep

By Bruce Bower, 15:49 PM April 15, 2008

Registering a memory for the long haul doesn't happen all at once, according to new studies of how people learn perceptual and motor skills. Instead, building memory is a three-pronged process that rests on sleep.

First, knowledge accrues during training and dips immediately afterward. A good night's sleep then revives much of what was forgotten, the researchers find. Finally, recalling the learned skill the next day destabilizes the memory of it, setting the stage for an individual either to ...

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