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Updated: Aug 22, 2025
Measurement Of Neuromagnetic Brain Function In Pre-school Children With Custom Sized MEG
Published on: February 19, 2010
Associations between digital media use and brain surface structural measures in preschool-aged children
John S Hutton1,2, Jonathan Dudley3,4, Thomas DeWitt5,3
1Division of General and Community Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 2011, Cincinnati, OH, 45229, USA. John1.Hutton@cchmc.org.
Excessive screen time in children is linked to reduced cortical thickness and sulcal depth in specific brain regions. These findings suggest potential impacts on cognitive-behavioral development, warranting further investigation into early media exposure effects.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatrics
Background:
- The American Academy of Pediatrics recommends limiting digital media use due to cognitive-behavioral risks.
- Early childhood media consumption is widespread, yet neuroimaging studies on its developmental impact are scarce.
- Cortical morphology, including thickness and sulcal depth, undergoes significant changes during development and influences cognitive abilities.
Purpose of the Study:
- To investigate the association between digital media use and brain development in young children using neuroimaging.
- To quantify the relationship between screen time and cortical morphology (cortical thickness and sulcal depth).
Main Methods:
- Utilized MRI to assess cortical thickness and sulcal depth in 52 children.
- Employed the ScreenQ measure to quantify children's media use.
- Conducted whole-brain and region-of-interest (ROI) regression analyses, controlling for covariates.
Main Results:
- Higher screen time scores correlated with reduced cortical thickness in right-lateralized occipital, parietal, temporal, and fusiform areas.
- Increased screen time was associated with decreased sulcal depth in right-lateralized inferior temporal/fusiform regions.
- ROI-based analyses revealed statistically significant associations, aligning with prior adolescent studies.
Conclusions:
- Early childhood screen time may be associated with altered cortical morphology in brain regions vital for visual and higher-order processing.
- Observed differences in higher-order processing areas might indicate potential under-development, necessitating further research.
- Findings highlight the importance of understanding the neurobiological effects of digital media on developing brains.
