Dear Freesurfer experts,
While the recon-all stream makes it easy to map gyri onto specific voxels via the label files that are produced, I'm interested in tracing a gyrus from beginning to end to gather info along that gyrus. I can't do this based on just aparc voxel maps because of the way that gyri fold -- I can't tell if a gyrus has suddenly become very fat or has simply folded back and forth.
The best thing would be to access the line that Freesurfer thinks marks the middle of the gyrus as well as the lines delimiting its sulcal boundaries. I get the impression that Freesurfer computes this during the normal recon-all stream on an inflated sphere.
My question is: is it possible to access this information? If so, where might I look? Thank you in advance for any advice you might be able to offer.
Cheers, Jordan
____________________ Jordan Poppenk, Ph.D. Post-doctoral Research Fellow Princeton Neuroscience Institute jpoppenk@princeton.edu