Figure 1.

Masks for CSF signal extraction for Data set 1; (a) masks corresponding to Variants 1 to 15 from Table 2; (b) masks corresponding to Variants 16 to 19. The ∪ stands for union operation. Coordinates for single voxels/sphere centers (x, y, z) in millimeters in the standard MNI space: anterior horn of right lateral ventricle (3, 14, 8); anterior horn of left lateral ventricle (−3, 14, 8); posterior horn of right lateral ventricle (18, −31, 20); posterior horn of left lateral ventricle (−18, −37, 17); third ventricle (0, −25, 8); and superior cistern (0, −40, −1) [Color figure can be viewed at http://wileyonlinelibrary.com]