I assume you mean this tutorial: FS-to-F99_Tutorial_Sept10.doc http://sumsdb.wustl.edu/sums/archivelist.do?archive_id=8285962
I confess I'm not as familiar with the details of that one, but my hunch is that the volume is being used here not to drive registration directly, in the way it would a volumetric registration to some stereotaxic space. Rather, it is being used here to help you pinpoint the murky medial wall borders. Often the dorsal border is clear from the CC or callosal sulcus. But it can be tricky to know where to place the medial wall ventral border. If you can somehow find a principled way to narrow it down from "somewhere in the neighborhood of the hippocampus," then you can explain that in your methods as a deviation from the tutorial, owing to lack of anatomical volume. On Jan 30, 2014, at 11:18 AM, Caspar M. Schwiedrzik <cschwie...@mail.rockefeller.edu> wrote: > Hi Caret Experts, > I was wondering whether it is possible to bring results from a surface based > analysis in Freesurfer (v5.1) over to Caret into F99 space in case there is > no volume available. The results I would like to display are from a group > analysis that was entirely done in surface space, in particular they were > done by mapping the functional data to a custom surface template; there is no > equivalent volume available because the surface template was made iteratively > from a number of spheres, not from an average volume. > In the tutorial, there are a lot of references to the volume, but I am > uncertain whether this is used for registration purposes, or merely for > display. > Thanks! > Caspar > > _______________________________________________ > caret-users mailing list > caret-users@brainvis.wustl.edu > http://brainvis.wustl.edu/mailman/listinfo/caret-users _______________________________________________ caret-users mailing list caret-users@brainvis.wustl.edu http://brainvis.wustl.edu/mailman/listinfo/caret-users
