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  • Pastor Hal Mayer

    Speaker / Director

Effect of Screen Time on Children’s Brains

Thursday November 14th, 2019
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Cincinnati Enquirer, by Anne Saker: Young children who get more screen time than doctors recommend have differences in parts of the brain that support language and self-regulation, a study at Cincinnati Children’s Hospital Medical Center has found.

It’s not clear how the changes affect a child’s development, the researchers said.

The study put 47 healthy Cincinnati-area children between 3 and 5 through magnetic resonance imaging of their brains as well as cognitive testing. While the study did not learn how screen time changed the brains, it did show that skills such as brain processing speed were affected.

“Screen-based media use is prevalent and increasing in homes, childcare, and school settings at ever younger ages,” said Dr. John Hutton, the author of the study and director of the Reading & Literacy Discovery Center at Cincinnati Children’s Hospital.

“These findings highlight the need to understand effects of screen time on the brain, particularly during stages of dynamic brain development in early childhood, so that providers, policymakers, and parents can set healthy limits,” he said.

The Cincinnati Children’s study was published in the journal JAMA Pediatrics and follows a string of studies released this year on the effects of screen time on the youngest humans.

A Canadian study published in April found that screen time can affect attention spans in preschoolers. A March study found that mobile phone use can delay expressive language in 18-month-olds. Another JAMA Pediatrics study in April found that screen time can affect how a child performs on developmental testing.

The Cincinnati Children’s study assessed screen time using the recommendations of the American Academy of Pediatrics. The academy suggests, for example, that children younger than 18 months should avoid all screen media other than video chatting. Parents should monitor digital media and watch it with their children.

For children between 2 to 5, the AAP recommends limiting screen time to an hour a day. Parents should designate media-free times, such as dinner or driving, as well as media-free locations at home, such as bedrooms.

The children in the Cincinnati study completed standard cognitive tests and a special test called diffusion tensor MRI, which estimates white matter integrity in the brain.

Researchers gave the parents in the study a 15-item screening tool based on the AAP’s media recommendations. Those scores were matched to the cognitive test scores and the MRI measures, controlling for age, gender and household income.

Higher scores on the screening tool were significantly associated with lower expressive language, the ability to rapidly name objects or processing speed and early reading skills, the study found.

In addition, higher scores also were associated with lower brain white matter integrity, which affects organization, and myelination – the process of forming a myelin sheath around a nerve to allow impulses to move more quickly, in tracts involving language executive function and other literacy skills.

Hutton said, “While we can’t yet determine whether screen time causes these structural changes or implies long-term neurodevelopmental risks, these findings warrant further study to understand what they mean and how to set appropriate limits on technology use.”

Hutton said his team has several follow-up papers in the works including a study showing the beneficial links between home reading practices and brain development in preschool-age children. The work builds on five other studies Hutton’s team has published since 2015 to link home reading to brain development before kindergarten.

Prophetic Link:
“The little children should come especially close to nature. Instead of putting fashion’s shackles upon them, let them be free like the lambs, to play in the sweet, fresh sunlight. Point them to shrubs and flowers, the lowly grass and the lofty trees, and let them become familiar with their beautiful, varied, and delicate forms. Teach them to see the wisdom and love of God in His created works; and as their hearts swell with joy and grateful love, let them join the birds in their songs of praise.” Child Guidance, page 48.


Source References

  • Too much screen time changes children’s brains, study from Cincinnati Children’s finds

Prophetic Intelligence Briefings are provided to show a link between current events and Bible prophecy only. The reposted articles, which are not intended as a commentary in support of or in opposition to the views of the authors, do not necessarily reflect the views of Pastor Mayer or of Keep the Faith other than to point out the prophetic link.

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