Cognitive abilities are correlated with iron levels in brain tissue rise during development.

Larsen et al. examined brain iron levels through magnetic resonance imaging brain scans from the Philadelphia Neurodevelopmental Cohort, a dataset of scans from over 1500 children and young adults ranging from age eight to twenty-four. The research team found that brain iron levels in the basal ganglia steadily increase throughout development and, in two subregions, continue to increase into adulthood.
Decreased brain iron in one subregion, the putamen, was correlated with impaired performance on cognitive tasks involving reasoning and spatial processing, suggesting that brain iron is needed for healthy cognitive development.
Source-Eurekalert
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