Health experts are raising concerns about the impact of early and prolonged screen exposure on toddlers. Studies suggest that children exposed to higher screen time around the age of one may have a greater likelihood of developing autism spectrum disorder (ASD) or autism-like traits by the age of three. ASD is a complex neurodevelopmental condition influenced by genetic, epigenetic, and environmental factors. Increasingly, early screen exposure is being examined as a potential environmental contributor.
Why Early Brain Development Matters
Autism typically begins during early brain development, with symptoms appearing between 12 and 36 months. Therefore, this period is critical for cognitive and social growth. Excessive screen use during this phase may reduce essential developmental inputs such as face-to-face interaction, eye contact, and verbal communication. As a result, it can impact neural development and may contribute to:
Behavioural issues
Sensory sensitivities
Sleep disturbances
Altered brain connectivity
Research Findings Highlight Emerging Patterns
Sheffali Gulati, faculty in-charge, paediatric neurology division at AIIMS, noted that several studies indicate a higher likelihood of autism-related traits among children with greater screen exposure at around one year of age, particularly in boys. A large study published in JAMA Pediatrics, involving over 84,000 children, reported a similar association. However, researchers emphasised that this link does not establish direct causation. Additionally, a study by AIIMS Delhi, published as an abstract in the Journal of International Child Neurology Association, analysed 250 children aged 3–18 years. It found that children with autism had earlier and heavier screen exposure.
Notably:
Over 80% of children with autism used screens for more than 20 minutes per session
This compares to 66% among children without autism
Higher screen usage also correlated with lower physical activity and increased sleep disturbances
Experts Urge Caution in Interpretation
While the findings are concerning, experts stress that the relationship between screen time and autism is not yet fully established. Praveen Gupta explained that early childhood development involves multiple complex processes. Excessive screen exposure may limit social interaction and is increasingly being observed alongside speech delays and behavioural issues. However, long-term studies are still needed to confirm a direct causal link.
Clinical Observations Reinforce the Trend
Doctors across India are witnessing similar patterns in clinical settings. Vinit Banga, Director of neurology at Fortis Hospital, Faridabad, highlighted that excessive screen time can affect attention span, language development, and social skills. He noted a rise in cases involving speech delay, reduced eye contact, and behavioural challenges among toddlers with high screen exposure. Jitendra Jain, senior consultant-paediatrics at Cocoon Hospital, observed that excessive screen use may amplify underlying developmental vulnerabilities. Encouragingly, he added that reducing screen time and increasing caregiver interaction often leads to noticeable improvements.
Recommended Screen Time Guidelines for Children
To minimise potential risks, experts recommend the following screen time limits:
Below 18 months: Avoid screen exposure entirely
18 months to 6 years: Limit to one hour per day, with parental supervision
Above 6 years: Restrict to a maximum of two hours daily
These guidelines aim to ensure that children receive adequate real-world interaction and developmental stimulation. Although research currently shows an association rather than causation, the growing body of evidence highlights the need for caution. Early childhood is a crucial period for brain development, and excessive screen exposure may interfere with essential social and cognitive processes. As reported by timesofindia.indiatimes.com, by limiting screen time and encouraging active caregiver interaction, parents can play a vital role in supporting healthy development and reducing potential risks.