UK Scientists Find Limited Causal Evidence for Smartphones Rewiring Children's Brains
UK neuroscientists have testified before Members of Parliament, indicating that there is little causal evidence to support claims that smartphones and social media are significantly altering children's brains. Experts appearing before the Science, Innovation and Technology Committee explained that most existing research on the impact of digital devices on infants, young children, and adolescents is correlational rather than causal. They also noted that neuroscience cannot pinpoint a precise age for children to begin using social media due to vast individual differences in brain development.
UK Members of Parliament (MPs) recently sought proof regarding claims that smartphones and social media negatively impact children's brains. Neuroscientists provided a less definitive answer during a session with the Science, Innovation and Technology Committee, stating that conclusive evidence is largely absent.
Professor Denis Mareschal, director of the Centre for Brain and Cognitive Development at Birkbeck, addressed questions regarding the impact of digital devices on infants and young children. He stated that there is "very little, if any, causal research in the early years," adding that "almost everything is correlational."
Similarly, Professor Sarah-Jayne Blakemore of the University of Cambridge discussed the impact of social media on adolescents. She noted that there is "almost nothing" in terms of evidence, with a few small studies that have not been replicated and are purely correlational.
MPs also inquired whether neuroscience could establish a specific age for children to be allowed onto social media. Professor Blakemore responded that neuroscience "can't pinpoint a precise age," citing the vast individual differences in brain development.
The overall conclusion from the hearing was that societal concern about the effects of a digital childhood currently outpaces the scientific evidence available to conclusively settle the debate.
According to Slashdot, the neuroscientists emphasized the distinction between concern and robust scientific evidence.
