Now a new study scanned the brains of children 3 to 5 years old and found those who used screens more than the recommended one hour a day without parental involvement had lower levels of development in the brain's white matter — an area key to the development of language, literacy and cognitive skills.
In addition, the portability of today's screens allow them to"follow kids everywhere." Hutton said."They can take screens to bed, they can take them to meals, they can take them to the car, to the playground.""About 90% are using screens by age one," said Hutton, who published a number of studies that used MRIs to research the impact of reading versus screen use by kids."We've done some studies where kids are using them by 2 months old to 3 months old.
A lack of development of those"cables" can slow the brain's processing speed; on the other hand, studies show that reading, juggling or learning and practicing a musical instrument improves the organization and structure of the brain's white matter. "The average screen time in these kids was a little over two hours a day," Hutton said."The range was anywhere from about an hour to a little over five hours."
Hutton agrees."It's not that the screen time damaged the white matter," he said, adding that what could be occurring is that screen time is too passive for brain development. "Remember that this is all relative," Hutton said, adding that more in-depth clinical trials need to be done to tease out the specifics.
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