Sleep on It: Time delay plus slumber equals memory boost

By Bruce Bower, 15:56 PM April 15, 2008

Sleep revs up a person's ability to discern connections among pieces of information encountered in novel situations, a new investigation finds.

So-called relational memory, a key to flexible decision making, improves as time passes after exposure to new information. It gets an extra boost from sleep, say neuroscientist Jeffrey M. Ellenbogen of Harvard Medical School in Boston and his colleagues.

Volunteers learned to pick certain items from each of five pairs of abstract patterns on a computer...

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