Claims

Screen time is not significantly associated with white matter microstructure (FA, MD) in 10-year-olds, while sports participation is positively associated with FA

Claim · All claims
Evidence · 1 study (2 entries) · review r3 · q3
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i? In a large sample of 10-year-olds, screen time was not significantly associated with any global DTI metrics including FA and MD. → Marciano Laura 2021 q3 i? Sports participation was positively associated with FA and, together with outdoor playing, negatively associated with MD, even after adjusting for screen time. → Marciano Laura 2021 (2)

Evidence

Marciano Laura 2021

Marciano Laura, Camerini Anne-Linda, Morese Rosalba. (2021). The Developing Brain in the Digital Era: A Scoping Review of Structural and Functional Correlates of Screen Time in Adolescence. Frontiers in Psychology. https://doi.org/10.3389/fpsyg.2021.671817

q3 · i? · review · r3

DTI analysis of parent-reported television, computer, and video game use in a sample of 2532 10-year-olds; the study found no significant association between screen time and white matter microstructure. Equivalence was not tested; no effect size printed.

"Controlling for sex, age, ancestral background, Body Mass Index, maternal education, emotional and behavioral problems, and non-verbal Intelligence Quotient (IQ), screen time was not significantly associated with any global DTI metrics (including FA and MD)."

Marciano Laura 2021 (2)

Marciano Laura, Camerini Anne-Linda, Morese Rosalba. (2021). The Developing Brain in the Digital Era: A Scoping Review of Structural and Functional Correlates of Screen Time in Adolescence. Frontiers in Psychology. https://doi.org/10.3389/fpsyg.2021.671817

q3 · i? · review · r3

Same DTI study: physical activity associations with white matter remained "after adjusting for levels of screen time," which the authors read as benefits of sports participation and outdoor play not neutralized by screen exposure. No effect size printed.

"Contrary, physical activity, particularly sports participation, was positively associated with FA. Sports participation, together with outdoor playing, was also negatively associated with MD."

Discussion

Page metadata
Field Value
type claim
id screen-time-null-white-matter-children
title Screen time is not significantly associated with white matter microstructure (FA, MD) in 10-year-olds, while sports participation is positively associated with FA
description Screen time is not significantly associated with white matter microstructure (FA, MD) in 10-year-olds, while sports participation is positively associated with FA
status review
evidence_strength weak
newest_evidence 2021
generated by process:wiki-ingest on 2026-10-16
trust unverified — no one has confirmed this page's content
sources 2 — marciano-laura-2021, marciano-laura-2021-2

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