From the same article: But the issue is controversial and his opinions and standing are questioned by Dorothy Bishop, professor of developmental neuropsychology at Oxford University who says that although this is an important topic, Sigman's paper is not "an impartial expert review of evidence for effects on health and child development". "Aric Sigman does not appear to have any academic or clinical position, or to have done any original research on this topic," she said. "His comments about impact of screen time on brain development and empathy seem speculative in my opinion, and the arguments that he makes could equally well be used to conclude that children should not read books."
