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Table 1 Defined regions of interest (ROIs)

From: Impaired neural networks for approximate calculation in dyscalculic children: a functional MRI study

Condition Talairach coordinates Volume (mm 3 )
  x y z  
Approximate calculation     
   Left intraparietal sulcus (IPS) -45 to -6 -80 to -35 32 to 52 6588
   Right intraparietal sulcus (IPS) 18 to 36 -78 to -53 23 to 50 4401
   Left inferior frontal gyrus (IFG) -39 to -27 14 to 26 -8 to 4 1458
   Right inferior frontal gyrus (IFG) 24 to 45 14 to 33 -13 to 9 4023
   Left middle frontal gyrus (MFG) -33 to -18 -10 to 9 42 to 60 2916
   Right middle frontal gyrus (MFG) 27 to 50 27 to 51 12 to 31 4536
   Anterior cingulate gyrus (ACG) -12 to 15 2 to 29 30 to 54 5535
Exact calculation     
   Left inferior frontal gyrus (IFG) -39 to -27 15 to 30 -1 to 12 1161
   Left fusiform gyrus (FG) -48 to -36 -75 to -55 -16 to -2 1448
   Left intraparietal sulcus (IPS) -42 to -24 -65 to -44 36 to 52 2295
   Right intraparietal sulcus (IPS) 24 to 51 -74 to -38 26 to 46 3504
Magnitude comparison     
   Left fusiform gyrus (FG) -45 to -6 -97 to -43 -23 to 5 6480
   Right fusiform gyrus (FG) & right middle occipital gyrus (MOG) 6 to 44 -94 to -48 -21 to 21 6376
   Right intraparietal sulcus (IPS) 21 to 30 -77 to -62 37 to 47 1323
  1. Defined ROIs for each condition, corresponding range of Talairach coordinates and volume of ROI are listed.