To follow up, it is intended that you will map both hemispheres of a given subject to one of the hemispheres of fsaverage_sym (it does not matter which, but we usually use lh). You can then do the comparisons on that hemisphere. Does that make sense? doug
On 01/08/2014 02:09 PM, Bruce Fischl wrote: > Hi Sofie, > > no, they don't correspond. You need to use mri_surf2surf to map one to > the other (which is a bit tricky). > > cheers > Bruce > On Wed, 8 Jan 2014, Sofie Valk wrote: > >> Dear Free Surfers, >> >> I have a short question regarding the mapping of vertices of the >> fsaverage_sym, how do vertices in the left hemisphere correspond to vertices >> in the right hemisphere? >> When I tested it, it did not seem that the first-indexed vertex on the left >> hemisphere corresponded to the first-indexed vertex on the right hemisphere >> defined by me as : (total vertexes/2 + 1) >> if so, how to calculate the difference between lh and rh? >> >> Thank you very much!! >> >> Kind regards, >> >> >> Sofie Valk >> >> ... >> >> PhD Candidate, Max Planck Institute for Human Cognitive and Brain Sciences, >> Leipzig, Germany >> >> > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.