Correlations between brain structures and study time at home in healthy children: a longitudinal analysis

Area of Science:

• Neuroscience
• Developmental Psychology
• Cognitive Science

Background:

• Childhood lifestyle habits, including study, significantly influence cognitive abilities.
• Previous research linked sleep and eating habits to pediatric brain structure changes.
• The impact of home study habits on children's brain structure remained unexplored.

Purpose of the Study:

• To investigate the relationship between home study time and brain structure changes in healthy children.
• To examine correlations between study duration and neuroanatomical development over three years.

Main Methods:

• Utilized magnetic resonance imaging (MRI) data from 229 children (aged 5.6–18.4 years).
• Employed voxel-based morphometry to quantify changes in regional gray and white matter volume.
• Conducted whole-brain multiple regression analyses to identify significant correlations.

Main Results:

• A positive correlation was found between home study time and increased regional white matter volume (rWMV) in the right superior frontal gyrus (SFG).
• Significant positive correlation observed between home study time and improvements in the verbal comprehension index (VCI) of the WISC-III.

Conclusions:

• The SFG, crucial for memory control, shows structural changes with increased study time.
• These findings suggest that extended study may promote neural plasticity in memory-related networks through axonal growth and myelination.