Napping May Help Infants' Memory Development

Jan 13, 2015 01:40 PM EST    

Napping May Help Infants' Memory Development

Infants Napping helps infants to develop their memory and retain new behaviors they have learnt, according to a recent study from the University of Sheffield.

Napping helps infants to develop their memory and retain new behaviors they have learnt, according to a recent study from the University of Sheffield.

Babies devote the majority of their time to sleeping, but until now very little was known about the links between sleep and the unprecedented levels of growth and development that take place during their first year of life.

Researchers from the University of Sheffield and Ruhr University Bochum in Germany found that the notion of 'sleeping like a baby' is extremely important in declarative memory consolidation - such as retaining facts, events and knowledge.

For the study, researchers explored whether daytime sleep after learning helped babies to remember new behavior. The study focused on 216 healthy six to 12 month-old infants and tested their ability to recall newly learned skills.

The youngsters were shown how to remove and manipulate a mitten from a hand puppet and were given the opportunity to reproduce these actions after delays of four and 24 hours.

Infants who did not nap after learning were compared with age-matched infants who napped for at least 30 minutes within four hours of learning the target actions.

Researchers found that only infants who had napped after the learning activity remembered the target actions whilst those who hadn't napped showed no evidence of remembering the new information and behavior. After a 24 hour delay children in the napping group also exhibited significantly better recall compared with infants in the no-nap group.

"These findings are particularly interesting to both parents and educationalists because they suggest that the optimal time for infants to learn new information is just before they have a sleep," researcher Dr. Jane Herbert said in a statement. "Until now people have presumed that the best time for infants to learn is when they are wide-awake, rather than when they are starting to feel tired, but our results show that activities occurring just before infants have a nap can be particularly valuable and well-remembered."

The study also suggests that allowing flexible napping schedules in response to different daily schedules could help ensure optimal learning conditions for infants. Naps of shorter than 30 minutes were shown not to provide sufficient time for infants to consolidate their knowledge such that it could be retained over the long term.

The findings are detailed in the Proceedings of the National Academy of Sciences of the United States of America.


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