Previous studies show the important role sleep plays in learning and memory formation. In a new study, neuroscientists implanted electrodes in the brains of epilepsy patients to record brain activity patterns. Findings show during sleep, the brain replays memories that go un-recalled when awake.

See the source article by following the link below:
Previous studies show the important role sleep plays in learning and memory formation. In a new study, neuroscientists implanted electrodes in the brains of epilepsy patients to record brain activity patterns. Findings show during sleep, the brain replays memories that go un-recalled when awake.