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Researchers have found "different patterns" in brain scans among children who record hard smart device and video game use, according to initial data from a major ongoing US.
The first wave of information from the $ 300 Million National Institute of Health (NIH) study shows that the nine and 10-year-old kids spending more than seven hours a day using such devices to show signs of early thinning From the cortex, the brain's outer layer that processes sensory information.
"We do not know if it is caused by the screen time, we do not know yet if it's a bad thing," said Gaya Dowling, an NIH doctor working on the project, explaining the preliminary findings in an interview with the CBS News Program 60 Minutes.
"What we can say is that this is what the intelligence looks like from kids who spend a lot of time on screens." And this is not just a sample, "said Downing.
The nihil data reported on CBS also showed that kids who spend more than two hours a day on screens score inferior in language and reasoning tests.
The study – which involves scanning the intelligence of 4,500 children – eventually aims to show whether the screen time is addictive, but researchers need some years to understand such long-term results.
"In many ways, the worries that investigators like me are is that we are the kind of natural kind of unconcreted experiment on the next generation of children," Dimitri Christrist, a leading author of the American Academy of Pediatrics & # 39; most recent guidelines on the screen time, has 60 minutes.
The first data from the study will begin to be released in early 2019.
The Academy currently recommends parents "to avoid digital media use – except video chatting – at children younger than 18-24 months."
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