Hi Bianca how did you coregister the data? Did you map the label so that it is in the coords of the new session? If so, try specifying -reassign on the tksurfer command line. That will discard the vertex indices in the label (which refer to the first session surfaces) and reassign vertex numbers from the current subject. This will *only* work if the label is in the correct coordinate system. You can verify this by loading it in freeview on top of the anatomical from the new session cheers Bruce
On Wed, 10 Jul 2013, Bianca van Kemenade wrote: > Hi Freesurfers, > > I have some participants of whom I obtained retinotopic polar angle data in a > previous session, and scanned eccentricity data in > a later session. I used the polar angle data to define V1-3, and would like > to display these labels on the eccentricity session > to help me define V3A. > > However, when I load my old V1-3 labels onto the inflated brain based on the > new session the labels look very strange. I > attached a screenshot of what is supposed to be lh dorsal V1, as you can see > it is scattered all over the cortex. When I load > the .nii based on the label into MRIcron, the ROI looks fine. > > Data from the newer session were coregistered to the older session, so that > can't be the problem. > > I looked around on the wiki and found the command mri_label2label that seemed > useful. However, this command needs acces to the > 'surf' folders of both sessions. Due to a computer crash I only have the > labels of the previous session, not the 'surf' folder. > Is there a way to display my old labels onto the new session without needing > access to 'surf'? > > Thanks, > Bianca > > > _______________________________________________ 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.
