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Hi - It is using the same projections as with the FA data (or whatever data you have used during the primary tbss run). see the section on "Using non-FA images in TBSS" in www.fmrib.ox.ac.uk/fsl/tbss/index.html Cheers, Saad On 17 Jul 2007, at 16:57, Katherine Perdue wrote: > Hi, > > If you use tbss with non-FA data, does tbss_skeleton map the same > voxels to the skeleton that it did with the FA data? Or is it just > using a max search function for the non-FA data, and thus may map a > value from a different voxel than the one that was selected for the > FA data? > > If it is just a search function, is there a way to force it to > choose the same voxel that was used in the FA skeletonising? > > Thanks, > Katherine ------------------------------------------------------------------------ --- Saad Jbabdi, Postdoctoral Research Assistant, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK +44 (0) 1865 222545 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~saad ------------------------------------------------------------------------ ---