| T1W images | T2W images |
|---|
| 1 month | |
| PLIC, optic radiation, central CS, | Posterior 1/3 PLIC, |
| optic nerve, cerebellar peduncles, | central CS, dorsal pons, |
| dorsal pons, vermis, | peridental WM, vermis |
| dentate nucleus | |
|
| 2 months | |
| Pre- and postcentral sulcus WM, | PLIC 1/3, CS, optic radiation, |
| ALIC, anterior pons, | middle cerebellar peduncles, |
| hippocampus | dentate nuclei |
|
| 3 months | |
| ALIC complete, | 1/2 PLIC |
| occipital WM at calcarine fissure, | |
| splenium of corpus callosum | |
|
| 4 months | |
| Beginning of frontal WM | Calcarine WM |
|
| 5 months | |
| Genu of corpus callosum | Anterior pons |
|
| 6 months | |
| Branching of frontal WM | PLIC complete, ALIC beginning, |
| splenium of corpus callosum |
|
| 7 months | |
| Branching of occipital WM | Optic radiation complete |
|
| 8 months | |
| Peripheral frontal WM, | ALIC complete, |
| fine arborization of paracentral and | genu of corpus callosum |
| occipital WM | |
|
| 10 months | ALIC thick, |
| arborization of central motor tracts, |
| branching of occipital tracts |
|
| 11–12 months | |
| Temporal WM | Branching of posterior parietal tracts, |
| beginning of frontal tracts |
|
| 15–18 months | Frontal arborization, |
| Subcortical WM, U fibers | beginning of temporal WM |
|
| 24 months | Temporal arborization, |
| subcortical WM, U fibers |
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