Why a messy baby may be brainier - WRCBtv.com | Chattanooga News, Weather & Sports

Why a messy baby may be brainier

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Next time your baby mashes his bananas, apple sauce AND carrots all together — not to mention all over his hands, hair and the high chair—don't fret about the mess. Your little one just may be getting smarter in the process.

In a study of more than 70 kids, aged 16 months, researchers at the University of Iowa wanted to know how well children learn words for non-solid objects, such as mushy oatmeal and gooey glue. Previous research has shown that toddlers learn more about solid objects because they can easily identify them due to the unchanging size and shape of the objects.

But it turns out that if you put toddlers in a setting they are familiar with, such as sitting in a high chair stuffing their mouths and playing with food, they actually do better at learning the names of foods in differing shapes and sizes. So says a paper published Monday in Developmental Science by University of Iowa researchers Larissa Samuleson, Richard Lewis and Lynn K. Hall.

In their study, the researchers exposed 16-month-olds to 14 non-solid objects, foods such as applesauce, pudding, soup and juice. After one minute, they asked the kids to identify the same food in different sizes and shapes. This required the kids to go beyond relying simply on shape and size and to explore what the substances were made of to help identify them correctly.

"For a lot of non-solid stuff, you can't really tell what it is just by looking at it. What matters is what it's made of. Is that whiskey or ice tea in the glass you just grabbed? Or similarly, for children, is that baby lotion or strawberry yogurt?," Hall, now a post-doctoral research associate at the University of Wisconsin-Madison, told TODAY Moms in an email. "The easiest way to know which things are made of the same stuff is to touch them, smell them or eat them. And if kids are in a situation where they have a lot of practice touching and eating non-solid foods, then they know it's okay to get in there and figure it out."

In the study, the kids who did the most poking, prodding, touching and tasting were more likely to correctly identify the foods. But where the kids sat also played a role in how likely they were to do so.

Samuelson, associate professor of psychology at the University of Iowa, says her prior work had suggested that children did not learn names for non-solid things like pudding and Jell-O as easily as they learned names for solid things like cups and cars. "But I knew (children) had a lot of experience with non-solid things because many of the things we eat are non-solids. I also knew that the context of prior experiences matter for your memory of them. So we decided to try the highchair," Samuelson said.

When the children were in a high chair, they were more apt to name the food than those children who were seated in other less familiar settings, such as a table, the study found. The researchers think that's because kids generally know high chairs are a safe zone for getting their messy on.

Perry says she was surprised by just how much something as simple as sitting in a different chair changed children's behavior. The kids know that "the high chair is the place where they can play with and eat food, and they just dive right in and do that," she said.

Children spend lots of time banging solid things and squishing non solids; it's just that they get to bang things in more diverse contexts than they get to mess with non-solids, Samuelson explains. "So the high chair becomes this special place for interaction with non-solid things."

Ultimately, all that eating and playing and making a mess taught the children something about new foods.

"They figured out which ones felt the same when they squeezed them and which ones jiggled the same when they poked them," Perry said. "I think these findings really highlight the importance of play and how simple, everyday activities can provide really rich learning opportunities for kids."

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