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Sleep Selectively Stores Useful Memories,
Brain Evaluates Information Based on Future Expectations, Study Suggests.
New research suggests that the brain evaluates memories during sleep and preferentially retains the ones that are most relevant.
After a good night's sleep, people remember information better when they know it will be useful in the future, according to a new study in The Journal of Neuroscience. The findings suggest that the brain evaluates memories during sleep and preferentially retains the ones that are most relevant.
Humans take in large amounts of information every day. Most is encoded into memories by the brain and initially stored, but the majority of information is quickly forgotten. In this study, a team of researchers of the University of L