Can I resample to a non-cubical grid using AFNI?
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Q28. Can I resample to a non-cubical grid using AFNI?
No. I understand that the AIR program from Roger Woods (at UCLA) can do this. Check out http://bishopw.loni.ucla.edu/AIR3/index.html.
If your goal is to resample your functional data in Talairach space back to a grid that is similar to the original data grid, this may not be such a good idea. In the transformation to Talairach coordinates, the original data grid is rotated and rescaled (and rescaled differently in different parts of the brain, for that matter). The original slices are not likely to be parallel to the new coordinate system, or have the same thickness. Resampling to a coarse non-cubical grid can make these changes very visible, and produce funny looking artifacts.
This FAQ applies to: Any version.
