German researchers published the results of a study on memory in the journal Nature Neuroscience. This shows that the brain takes advantage of periods of sleep to save much more important information it has acquired.
Until now, researchers knew that the hippocampus, a brain area that temporarily stores data which have been acquired, was waiting for a form of reactivation of these memories so that they set in the neocortex, an area of permanent storage. To ensure that sleep played no role in the process of memory, German scientists have developed an experiment.
They asked 24 volunteers to hold 15 pairs of cards representing animals and objects. After 40 minutes, 12 candidates had to memorize a new set slightly different from the first. The remaining 12 participants, meanwhile, had enjoyed a nap before being placed before the second set of cards. The test they proposed was then concerned only the first series.
Researchers have found, to their surprise, that candidates who had been rested had retained 85% of cards against 60% for others. They concluded that "the reactivation of memories had completely different effects depending on waking or sleeping. We believe that the reason for this unexpected result is that the transfer of memories between the hippocampus and neocortex had already begun in the early minutes of sleep. "
Thus, a rest of 40 minutes would be enough for a lot of memories to be stored in an area where new information would not arrive more or dislodge the jam. These results may benefit those who are learning d. .. Read the article on Maxisciences
http://www.maxisciences.com/dormir/dormir-pour-mieux-retenir_art12072.html
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