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Commentary: Napping helps your pre-schooler learn better

Beyond the emotional regulation payoff, naps also provide a direct benefit to learning, says an observer.

AMHERST, Massachusetts: For many parents of young children, the highlight of their day is nap time – not for them, but for their little ones.

Getting a child to nap is the golden ticket. Not only can it mean uninterrupted work or self-care time for parents, but their unrecognisable tyrants often wake as happy campers after a nap.

Researchers have validated this experience. One study presented 3-year-olds with an unsolvable puzzle, one with a missing piece, either after they napped or after they missed their nap.

They found the nap-deprived children showed more negative emotions – sadness, worry and anger – when faced with the puzzle than rested children did.

As a cognitive neuroscientist, I study sleep. My research shows that naps help young children regulate their emotions and solidify memories that accumulate so quickly at this age.

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My colleagues and I recently demonstrated that nap-deprived pre-schoolers not only showed more negative emotions, but paid closer attention to the emotions around them than rested children did.

We presented young children with pairs of faces on a computer screen, a neutral face and an emotional face – either happy or angry. Those faces were then removed to reveal a star hiding under one of them. The children were asked to identify which side of the screen the star was on by pressing a button.

This task measures whether a child is paying special attention to emotion stimuli or not. If a child is biased toward the emotional face, she will be quicker to press the button when the star is behind the emotional face than when it is behind the neutral face.

(Photo: Unsplash/Andre Hunter)

We found nap-deprived children were biased toward the emotional faces, responding 22 milliseconds faster than if they were rested. After a nap, however, children showed no bias. They responded equally whether the star was behind an emotional or neutral face.

So a child who doesn’t nap is quicker to respond to emotional stimuli in his environment.


Although these results come as no surprise to parents, it is important to provide scientific backing of the nap benefit.

Most pre-schools offer a nap opportunity. However, the length of this period has been shortened in recent years because studies have found a pre-school education not only improves school readiness but is also associated with long-term academic performance and even health outcomes such as reduced obesity and improved cardiovascular health.

To capitalise on the advantages of pre-school during this fertile learning period, regulatory agencies have added expectations such as socio-emotional curriculum and even dental hygiene to the pre-school day.

Sleep is often viewed as optional and is an easy target to cut when making room for more educational opportunities.

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However, naps make it possible to reach these early education goals. Beyond the emotional regulation payoff, naps also provide a direct benefit to learning.

Research shows when pre-school children were read storybooks introducing new words, the children who napped after hearing the stories learned more of the new words than the children who did not nap.

Following learning opportunities with a nap enhances memory.

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The reason napping enhances learning has to do with the way brains process new information.

Research in rodents suggests that while we sleep, memories are replayed. Just as if you wanted to learn all the words to your favourite movie scene, you might replay that scene repeatedly, sleep is a time to replay memories without interference from ongoing learning.

Furthermore, the research suggests memories are replayed in fast-forward during sleep, allowing them to be replayed repeatedly during the night. This replay happens in the hippocampus, an area of the brain where memories are processed in the short term.

As memories are replayed in the hippocampus, they are moved (or copied) to unique areas of the cortex, making them more stable and easier to retrieve later. In the cortex, the memories can be sorted and stored with other similar memories.

(Photo: Unsplash/Minnie Zhou)

Imagine the hippocampus as your desk at the end of the day, with stacks of papers and mail from different sources. Sleep moves these “papers” to the cortex, which is much more like a filing cabinet. Not only is there more space, but now when you want to find something, you can do so more quickly because of its organisation.

In children, the hippocampus is less mature – think of it as a smaller desk – so fewer memories can be held before there is catastrophic interference. This explains why naps are critical at this young age, and memories must be more frequently moved to the filing drawers.

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To parents still learning to implement a nap time, maintain a consistent pre-nap routine. After lunch, give your child time to unwind, then join them in a quiet activity such as reading.

Maintain a consistent overnight sleep schedule. Keeping bedtime and wake time within a stable 30-minute window day to day will allow for an appropriate and predictable amount of sleep pressure to build up.

If you are out of the nap routine, you may need to retrain your child to nap consistently. Stay with them as they fall asleep (soothing with back rubbing) initially, and leave the room earlier and earlier over the following days.

Not only is napping key to early education objectives, it is central to the emotional and cognitive development of young children. And it goes without saying, whether in school or at home, turning unrecognisable tyrants into happy campers is good for everyone.

Rebecca Spencer is Professor of Psychological and Brain Sciences, University of Massachusetts Amherst. This commentary first appeared on The Conversation.

Source: CNA/el


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