Credit: Guray Erus, PhD/Cerebral Cortex
Left: Scatter plot of brain development indexes (BDIs) of 621 subjects calculated from MRI images, against their ages. The subjects with BDIs outside the 90 percent prediction interval have been labeled as outliers, i.e. advanced or delayed brain development.
Right: The average gray matter tissue density maps in different ages for the advanced, delayed and normal subject groups indicate a consistent structural change in gray matter—with a developmental shift between the three groups.