A new brain-imaging study out of the Netherlands found that when mothers scroll on their phones during playtime, their infants’ brains stop syncing up with theirs.
This disruption, researchers say, reflects a real breakdown in connection, not just a missed moment.
“The observed lower brain-to-brain synchrony during maternal smartphone use reflects lower responsiveness and decreased sensitivity,” the study’s authors wrote in Scientific Reports, the journal that published the findings on January 28, 2026.
The research team, led by Dr. Marion I. van den Heuvel, an Associate Professor at Tilburg University’s Tranzo research group, and Dr. Maryam Alimardani, an Associate Professor in the Department of Computer Science at Vrije Universiteit Amsterdam, wanted to know what actually happens inside a baby’s brain when mom looks down at her phone. So they wired up 33 mother-infant pairs — babies between fiv5e and 12 months old — with dual EEG caps and measured their brainwaves during a modified version of the well-known “Still-Face” experiment.
Each pair went through five two-minute phases: normal play, a stretch where mom scrolled her phone instead of engaging and then a reunion phase where she looked up and returned to playing. Researchers tracked the results using something called a weighted Phase Lag Index, essentially a measure of how well two brains are firing in rhythm with each other.
The pattern was consistent. Brain-to-brain synchrony dropped noticeably the moment mom’s attention shifted to her phone, then climbed right back to baseline once she re-engaged.
Related: What Is ‘Technoference’? Why Parents Should Avoid It
“Face-to-face interactions between parents and infants are crucial for healthy infant development,” the researchers noted in the study, pointing out that prior research already links higher brain synchrony to more sensitive caregiving and lower synchrony to more intrusive, disengaged parenting.
There’s good news buried in the data, though.
“Mother-infant brain-to-brain synchrony can be restored when the mother re-engages in the interaction,” the authors wrote, meaning a distracted moment doesn’t have to become a lasting rupture. Babies’ brains, it turns out, are quick to reconnect once they have their mother’s attention again.
This is the latest entry in a growing body of research on “technoference” — a term for the small, constant interruptions phones cause in family life. Movieguide® has covered this territory before, reporting on how children pick up on parental distraction in ways that affect their mood, language development, and sense of security.
A separate study Movieguide® reported on last year found that parents’ own screen habits shape their kids’ habits just as much as any household rule does. Dr. Jason Nagata, that study’s lead author, put it simply: “Parents should practice what they preach. If parents make a family rule to not text at the dinner table, they should follow it.”
None of this means a mom who checks a text during tummy time has failed her child. The research actually argues the opposite — connection is resilient, and a phone glance here or there isn’t the crisis some headlines make it out to be.
What this study does confirm is something Scripture has always assumed about parenting: presence matters more than perfection. Children are wired to read their parents’ faces, voices, and eyes long before they understand a single word, and that wiring doesn’t pause just because a notification did.
For Christian families navigating a world thick with screens, the takeaway isn’t guilt. It’s a nudge toward the kind of undivided attention that lets a child’s brain — and heart — settle into the safety of being truly seen.
Read Next: You Can’t Expect to Limit Your Child’s Screentime Without Doing This First
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