Yes, you can do these types of things. You'll need to create an FSGD file. Search for FSGD on the wiki and go to the examples page, there's not an example of 3 groups and 2 covariates, but there are enough examples there that you can piece it together. After you have your FSGD file, run mris_preproc, mri_surf2surf to smooth, mri_glmfit, then mri_glmfit-sim to correct for multiple comparisons. There's a group analysis tutorial on the website too.
doug marco battaglini wrote: > Hi to everybody, > I am a very inexperienced users of FreeSurfer. I have 3 groups of > subjects > and I have run recon-all and checked the results for all the subjects > (very good results). > > Now what I need to do, is to calculate the differences in the regional > cortical thickness between these > 3 groups (using age and gender as covariates) and to perform multiple > comparisons, in order to detect > possible local differences in cortical thickness. > > Is it possible to perform this kind of analysis also for comparing > surfaces between different groups? > > Could you give me a short "pipeline" about the steps I need to do, or > redirect me > to some focused documentation? > > Thank's. > > Marco > > > ------------------------------------------------------------------------ > > _______________________________________________ > 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: www.nmr.mgh.harvard.edu/facility/filedrop/index.html _______________________________________________ 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.
