Images in neuroscience: Fetal and Neonatal Brain Development

In the top row of longitudinal T1-weighted magnetic resonance images of the same child (and same scale), note the dramatic increase in total brain size as well as in white matter intensity over early development. In the bottom row of diffusion tensor images, white matter tractography of a neonate, one year old, and adult shows the organization of corpus callosum white matter fibers, reflected in increasing fractional anisotropy (yellows, reds), developing with age.