Are you trying to do a parametric analysis? See https://surfer.nmr.mgh.harvard.edu/fswiki/FsFastParametricModulation
On 9/13/19 11:08 AM, Nasiriavanaki, Zahra wrote: Dear Freesurfer experts Hi I have a question about weighting different contrasts using mkcontrast-sess commmand. I have single subject functional data with 18 different contrasts, and I am willing to weight the different contrasts as (for example) ascending linear. Something like: mkcontrast-sess -an $analysis -a 1 -a 2 -a 3 -a 4 -a 10 -a 11 -a 12 -a 13 -a 6 -a 7 -a 8 -a 9 -a 15 -a 16 -a 17 -a 18 In which contrast number two weights twice as contrast number one and contrast number 3 weights twice as contrast number 2 and so on. Is there any way I can do such a thing with mkcontrast-sess? or do you have any suggestion for such an analysis? Thanks Mona Zahra (Mona) Nasiriavanaki Postdoctoral Research Fellow Martinos Center for Biomedical Imaging Massachusetts General Hospital 149 13th Street, 149-2615 Charlestown, MA, USA, 02129 _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu<mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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