Oh, sorry, I had misunderstood your question. Yes, you will need to create a new paradigm file and a new analysis to go with it. The actual analysis should not take that much time because all the preprocessing is already done. It will probably take 15-20 min per subject. doug
Adam Nitenson wrote: > I'm not sure how I could do that considering that, in the paradigm file, > the 1, 3, 5, and 7 loads are all designated with the same condition number > (2), while the weight is what varies. My current contrast (2vFix) > encompassed all four loads so I'm not sure how I could just make a new > contrast without altering the condition number for the 7-load, and thus > requiring a new analysis. > > -Adam > > >> Hi Adam, why not just make a new contrast with 1, 3, and 5? You can then >> run selxavg3-sess -- it will recognized that you only added a contrast >> and just re-run the contrast (should be pretty quick). >> >> doug >> >> Adam Nitenson wrote: >> >>> Hi Doug and Freesurfers, >>> >>> I am currently analyzing data acquired from the Sternberg memory >>> task, which involves memorizing sets of 1, 3, 5, and 7 letters. I >>> have created an analysis (see attached analysis.info and paradigm >>> example) which allows me to create maps of the load-based activation >>> when going from 1 to 3 to 5 to 7 letters, which accounts for the >>> analysis' single "contrast". >>> My PI was hoping that, for some subjects, we could look at the >>> regression from JUST 1 to 3 to 5, since they have poor 7-letter data. >>> >From looking at the analysis setup, it looks like I would have to >>> make this change at the paradigm level since subjects have already >>> been run with the current analysis with just the 1,3,5,7 regression >>> contrast. I would probably have to change the "2"s in the paradigm >>> file to "1"s for the 7-letter sets (since the contrast is 2vFix, and >>> this alteration would essentially "ignore" the 7-letter condition), >>> but a change at the paradigm file level, I believe, would essentially >>> necessitate the formation of a new analysis entirely, which would >>> then have to be run again individually on subjects, which can be a >>> time consuming process. >>> I was wondering if there was a way I could bypass this step and >>> modify the analysis to suit these newer needs, or will I have to >>> essentially make a new analysis based on my current one for this to >>> work? >>> >>> Thanks, >>> >>> Adam Nitenson, B.S. >>> Brain Genomics Lab >>> Massachusetts General Hospital >>> niten...@nmr.mgh.harvard.edu >>> Phone: 617-643-3215 >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> 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 >> >> >> >> > > > Adam Nitenson, B.S. > Brain Genomics Lab > Massachusetts General Hospital > niten...@nmr.mgh.harvard.edu > Phone: 617-643-3215 > > > -- 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.
