Big Talairach Box?
toggle box was added to the Markers control panel. If this toggle is turned off, then the old z=-55 mm lower limit is used; otherwise, the new z=-65 mm is used. The “best” solution is to go back and retransform the old datasets to the Big box. This is a fair amount of trouble, though. If you don’t care about activation in that very inferior region, then you can extend the old (small box) datasets to have the same size as the new (Big box) datasets using the program 3dZeropad. This will add slices of all zeros, which will make the dataset .BRIK files the same size, and thus be able to be compared (e.g., via 3dANOVA). If you have used the default 1 mm voxel size in +tlrc coordinates (as almost everyone does), then you need to add 10 zero slices at the inferior edge of the small box datasets.
