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motor memory consolidationPsyPost
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81% Informative
A new study published in the Journal of Neuroscience found that motor memories are not just consolidated over time, but they can be significantly enhanced when sleep closely follows practice.
Previous studies suggested motor memories consolidate with time, independent of sleep.
But these studies did not consider the timing between training and sleep, which could be a critical factor.
In this study, the researchers proposed that sleep benefits motor memories only when sleep occurs shortly after practice while the memory is fresh and fragile.
When participants trained just before going to sleep, their memory retention was significantly better — by about 30% — than when they trained and stayed awake for several hours before sleeping.
The improvement was tied to specific changes in brain activity during sleep, including increased density of sleep spindles and their coupling with slow oscillations.
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