text: 14  27  40 
  Weeks since conception 
  
  Summary brain measures 
  
  . 
  t 
  n 
  a 
  u 
  q 
  *R*2  adj = 0.50,*P*= 0.007 
  *R*2  adj = 0.91,*P*< 0.001  0.44 
  
  y 
  p 
  o 
  r 
  t 
  o 
  s 
  i 
  n 
  a 
  l 
  a 
  b 
  o 
  G 
  0.38 
  
  0 
  
  s 
  e 
  l 
  c 
  i 
  r 
  t 
  n 
  e 
  v 
  t 
  a 
  L 
  
  4,800 
  ) 
  3 
  m 
  m 
  ( 
  
  3,900 
  0 
  
  adj = 0.90,*P*< 0.001  26,000 
  ) 
  3 
  F 
  S 
  C 
  m 
  m 
  ( 
  
  24,500 
  100  150  0  50  100  150 
  Weeks since conception 