Actually, you can still do each contrast individually. Each will produce ces and cesvar files. Take the difference between the ces files and the average of the cesvar files, then feed the result into mri_glmfit FFX
doug On 11/11/2014 11:56 AM, Caspar M. Schwiedrzik wrote: > Hi Doug, > I wanted to follow up on this. Would you be able to provide a > workaround for contrasting multiple taskregs against each other? Is > there something I can try in the meantime? Thanks, Caspar > > > 2014-11-10 13:54 GMT-05:00 Caspar M. Schwiedrzik > <cschwie...@rockefeller.edu <mailto:cschwie...@rockefeller.edu>>: > > Hi Doug, > thanks for your reply. I would like to feed the differences into a > FFX group analysis, so I think I will need to resort to your > workaround. It would be great if you could provide that. Thanks! > Caspar > > 2014-11-10 13:45 GMT-05:00 Douglas N Greve > <gr...@nmr.mgh.harvard.edu <mailto:gr...@nmr.mgh.harvard.edu>>: > > > To get sig maps for an individual, this is problematic but I > could > probably come up with a work-around. For a group analysis, you can > simply compute each taskreg separately, then subtract the two > prior to > running mri_glmfit. > doug > > On 11/10/2014 01:36 PM, Caspar M. Schwiedrzik wrote: > > Hi! > > A quick follow-up: > > I have a taskreg file with 6 continuous predictors. I would > like to > > run specific contrasts, e.g., predictor 1 vs. mean(predictor > 2:6). > > From what I gather, selxavg3-sess will run automatic > contrasts on > > taskregs, but the automatic contrasts are against baseline. > This is > > not what I need at this point. > > mk-contrast-sess does not like what I am putting in because > I do not > > have a paradigm file in which condition numbers are specified. > > Is there a way to compute specific contrasts between multiple > > taskregs, and if not, is there a workaround? > > Thank you very much, Caspar > > > > > > 2014-11-06 15:23 GMT-05:00 Caspar M. Schwiedrzik > > <cschwie...@rockefeller.edu > <mailto:cschwie...@rockefeller.edu> > <mailto:cschwie...@rockefeller.edu > <mailto:cschwie...@rockefeller.edu>>>: > > > > Hi! > > I have several external regressors in my analysis that I > configure > > with -taskreg in mkanalysis-sess (something like -notask > -taskreg > > nameoffile 6). > > I was wondering how to set up mkcontrast-sess to > contrast these > > regerssors given that I do not have a paradigm file for > them. > > Can I just do something like -a 1 -c 2 -c 3 -c 4 -c 5? > > > > Thanks, Caspar > > > > > > > > > > _______________________________________________ > > Freesurfer mailing list > > Freesurfer@nmr.mgh.harvard.edu > <mailto: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 <mailto:gr...@nmr.mgh.harvard.edu> > Phone Number: 617-724-2358 <tel:617-724-2358> > Fax: 617-726-7422 <tel:617-726-7422> > > Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting > <http://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 > Freesurfer@nmr.mgh.harvard.edu > <mailto: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. > > > > > > _______________________________________________ > 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: https://gate.nmr.mgh.harvard.edu/filedrop2 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
