Hi, 1) So I should generate a .mgh file, which will be the input for the mri_surf2surf script, for each comparison I wish to do? I have three 3 groups (schizophrenia, bipolar disorder and controls), and both schizophrenia and bipolar disorder can be further divided into remission / non-remission subgroups. If I want to compare schizophrenia subgroups to controls, not including bipolar disorder, should I run mris_preproc separately including only schizophrenia subjects and controls?
2) I intent to use de Mass-univariate model from the Linear Mixed Effects (LME) Models Wiki page. I just used the qdec.table to input the subjects list, as suggested in the Wiki. Should I necessarily include -qdec-long (table also with the .base. templates folders) in the mris_preproc or may I use the -qdec instead (including only .long. processing)? Thanks a lot! -- Pedro Rosa On Monday, January 27, 2014 at 9:07 PM, Douglas N Greve wrote: > > On 01/27/2014 06:03 PM, Pedro Rosa wrote: > > > > Pedro Rosa > > > > Hi, > > I have a couple of questions about the mris_preproc: > > 1) Can I include all subjects in the qdec.table, but afterwards exclude > > some of them (based on a determined categorial variable) during the > > statistical analysis? > > > > I don't think so. This was originally part of the plan but we never got > around to implementing it. > > I understood that the script assembles thickness / area data into a single > > file, but individual data is not changed depending of other subjects’ data > > (it assembles individual data independently of other subjects into > > common-space fsaverage). Am I mistaken? > > No, you are correct > > > > 2) In a longitudinal study, should I include the .base. folders in the > > qdec-long.table (variable 2), or is it the same to include only the .long. > > folders in the qdec.table (below fsid)? > QDEC is not the right tool for doing longitudinal analysis. Use > mri_glmfit from the command line instead. > doug > > > > > > Thanks a lot, > > Pedro. > > _______________________________________________ > > Freesurfer mailing list > > [email protected] (mailto:[email protected]) > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > > > -- > Douglas N. Greve, Ph.D. > MGH-NMR Center > [email protected] (mailto:[email protected]) > 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 > (http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html) > Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ > > _______________________________________________ > Freesurfer mailing list > [email protected] (mailto:[email protected]) > 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. > >
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