High-resolution (0.15 mm isotropic) diffusion MRI of newborn and an adult marmoset brains were acquired. For the adult marmoset brain the diffusion MRI data of anterior and posterior parts of the brain were separately acquired and subsequently co-registered. Across the whole brain, fractional anisotropy (FA) was lower and mean diffusivity (MD) was higher (Fig. 4) in the newborn compared to the adult. The biggest differences were observed in white matter. Cingulate cortex region A25 showed the smallest difference, which aligns with previous studies showing its early stage development
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