On 03/05/2013 12:13 AM, Rongxiang Tang wrote: > Dear All, > > I have some basic questions about groups analysis for cortical > thickness, and I looked over the list and tutorial, but still have > questions. > I have two groups, experimental and control, and both were tested > before and after training... > I plan to use qdec to run the group analysis, and I finished the > recon-all, and -qcache processing for each subject. > My question is that: > > 1.Is it necessary to select a ROI prior to my cortical thickness > analysis? no > 2.For the .dat text file, which stats (for cortical thickness) output > should I use for the continuous factors such as left hemi thickness, > right hemi thickness? If you want to use the thickness as an dependent variable (sounds like you do), then do not put thickness in the .dat file. doug > > Thanks, > Catherine > > > _______________________________________________ > 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 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.
