Excessive screen exposure for infants and toddlers can result in harmful effects, from diminished attention spans to reduced empathy. Carlota Nelson, director of the documentary Brain Matters, explains in a Unicef article why excessive screen time negatively affects young children and underscores the value of off-screen activities for healthy development.
Screen Time in a Tech-Driven Era
“In today’s tech- and media-driven world, many parents use screens to keep young children entertained or distracted while managing other responsibilities,” writes Nelson. “It works. Screens captivate children’s attention in a way few other things do, allowing parents a brief respite. But what is the impact of screens on young brains, and how much screen time should children be exposed to?”
While brain scientists studying infant brain development lack complete answers, their research highlights the importance of off-screen experiences. Such activities enable children to develop social and cognitive abilities, fostering healthier and happier growth.
Human Interaction Fuels Learning
Patricia Kuhl, a prominent brain scientist conducting experiments with over 4,000 babies annually, states: “Research shows that babies under a year old do not learn from machines,” referencing brain scans on a computer. “Even captivating videos result in minimal learning compared to the remarkable learning from live human interaction.”
This finding aligns with the World Health Organisation’s recommendation of no screen time for children under two and a maximum of one hour daily for those aged two to four.
Screens Disrupt Focus
“For children to succeed, they must develop the ability to concentrate and focus,” adds Nelson. “This skill begins forming in their earliest years when their brains are more sensitive to their surroundings.”
Brain development requires external stimuli and sufficient time to process them. Reading storybooks aloud provides children with opportunities to absorb words, images, and voices, whereas constant screen exposure negatively affects attention and focus.
Screens Hinder Self-Regulation
Boredom benefits young children by teaching them to handle frustration and regulate impulses. “Constant stimulation from screens causes children to forget how to rely on themselves or others for entertainment, leading to frustration and hindering imagination and motivation,” Nelson notes.
Screens Impede Empathy Development
Studies show screen time limits the ability of young children to interpret facial expressions and build social skills, both critical for empathy. Face-to-face interactions remain the primary way children learn to understand non-verbal cues.
“Until babies develop language,” says Charles Nelson, a Harvard neuroscientist studying the impact of neglect on children’s brains, “all communication is non-verbal, so they rely heavily on observing faces to derive meaning. Is this person happy with me, or are they upset?” This interaction between children and caregivers is essential for brain development.
Screen exposure reduces children’s ability to interpret emotions and manage frustration, while also limiting engagement in brain-boosting activities like play and peer interaction. When screens are necessary, high-quality content and active engagement during viewing are crucial. “Limiting or eliminating screen time in these early years yields lifelong benefits.”
Compiled by Warren Hawkins Source: Unicef
