text: **Subcortical GMV changes tied to gestation**
  Consistent with the broader cortical reductions in GMV, several subcor- 
  tical regions significantly reduced in volume across gestation (Fig. 3a, 
  left). This included bilateral ventral diencephalon (right hemisphere 
  values shown in Fig. 3a, right; encompasses hypothalamus, substantia 
  nigra, mammillary body, lateral geniculate nucleus and red nucleus 
  among others22), caudate, hippocampus and thalamus, along with left 
  putamen and brain stem (Supplementary Table 6,*q*< 0.05). 