Processing Steps for TBSS Analyses
After the DTI images are preprocessed and FA images are created, the next steps are to run the TBSS analyses in FSL. The TBSS analyses run using four different FSL scripts. Once the four steps are complete for the FA images, similar steps are run on the non-FA images.
1)Reformat the FA data using the FSL script "tbss_1_preproc"
To run this script all the FA images need to be moved to the same directory, and the script must run from within that directory. This preprocessed all of the NifTi images by eroding FA images slightly and zeroing end slices (to remove outliers), and skeletonize all participants' FA volumes.