Dear Martin， Thank you for your reply. I used a paired analysis to do "two groups two times data of the longitudinal analysis".
But unfortunately, I did not make the results, and I use “mri_glmfit-sim” to find 0 vertices in mask. My files are as follows. Fsgd 1: (pairs.fsgd) GroupDescriptorFile 1 Class Sub Class Con Input sub01_MR1 Sub Input sub01_MR2 Sub Input con01_MR1 Con Input con01_MR2 Con ... Fsgd 2: (paired-diff.fsgd) GroupDescriptorFile 1 Class Sub Class Con Input sub01pair Sub Input con01pair Con ... mean.mtx: 1 -1 Are they correct in my Paired analysis? And I am trying LME now. However, I see other people in the mailing list of the questions and replys, I realize that I may be wrong. My two groups of two time are the experimental group (bs) and the placebo group (placebo). I want to do “the crossover analysis” Just like:(postbs-prebs) - (postplacebo-preplacebo) Should not I use longitudinal analysis for these two groups? What kind of analysis do I need to do? Please tell me where I should look in the wiki. Looking forward to reply, and thanks very much. Kind regards, Livia
_______________________________________________ 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.
