Hi, If you've already done the registration in FEAT, then you can just use Renderhighres (or Renderhighres_gui on a Mac) to create the upsampled maps for you. Cheers, Adrian On Wed, Aug 11, 2010 at 4:39 PM, Matthew Webster <[log in to unmask]> wrote: > Hello, > You can use the -applyxfm option in FLIRT ( along with the transformation matrices in a FEAT folder's reg directory ) to appropriately upscale your maps ( see http://www.fmrib.ox.ac.uk/fsl/flirt/examples.html for more details on the command line call ). > > Many Regards > > Matthew > >> Hello, >> >> Can anyone please tell me how I can overlay the threshold maps onto the structural data, if there is a way? It says images must be of same dimensions when I try to do it. >> >> Thank you. >> >