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Thanks again for the quick response Steve. That's the setup I currently have, and will go forward with. Jessica On Wed, May 20, 2009 at 2:43 AM, Steve Smith <[log in to unmask]> wrote: > Hi - if you know what needs to go into your designs (and resulting > design.fsf files) then you should be able to script this - taking a template > design.fsf and amending it for each new subject/analysis, taking into > account what low-level images/EVs are non-zero. > > Cheers. > > > > On 19 May 2009, at 18:23, Jessica Kirkland wrote: > > Thanks Steve, >> >> That's what I've done (thanks too Martin!), but now I run into the issue >> that Heather Urry posted about last week (the analysis fails at the >> post-stats, due to (I think) any time I've used an "empty" EV). Is there any >> way to get around this? I'm asking because I have 70 subjects, and I am >> already customizing each run-level .fsf with specific empty EVs for all 3 >> runs, and now will have to customize each .fsf file again for each subject >> at the 2nd level, reflecting these empty EVs. I can definitely go that >> route, but want to make sure I am not missing out on any more automated >> work-arounds before I proceed with this path. >> >> thank you, >> >> Jessica >> >> On Tue, May 19, 2009 at 5:11 AM, Steve Smith <[log in to unmask]> >> wrote: >> Hi - I would think that you should be able to setup a second-level FE >> within-subject model that takes in all first-level COPEs (possibly using the >> "inputs are copes" input type option, rather than the "inputs are FEAT >> directories" options). You then just need one EV per condition (eg one for >> face and one for object) in this second-level model. >> >> Cheers. >> >> >> >> On 18 May 2009, at 21:01, Jessica Kirkland wrote: >> >> Hi, >> >> I am currently analyzing data for 70 subjects, 3 runs each. I would like >> to set up a 3-level analysis like this: level 1 = run, level 2 = subject, >> level 3 = group. My problem is that each subject has 2 runs containing face >> stimuli, and one run containing object stimuli--so I do not want to average >> all 3 at the subject level. >> >> I am unsure of how to make my 2nd level fixed-effects analysis take this >> into account (e.g., I could do a 2nd level combining across the face runs, >> but what about the object run?). Is there a way to do this at the second >> level without averaging across all 3 runs? I tried to get around the issue >> by entering all 3 runs' feat directories, and then setting up 2 contrasts, >> one combining the 2 face runs and 1 representing the object run, but Feat >> crashed because the runs have different #s of copes. >> >> Alternatively, could I run two separate 2nd-level fixed effects >> analyses--one for face runs and one for the object run? If I am >> understanding correctly, it would not be appropriate to input all runs >> separately into a higher-level ME Flame analysis, or to input some 1st >> (object runs) and some 2nd (face runs) level data at the 3rd level. In any >> case it seems that I may run into the different # of copes issue at the 3rd >> level as well... >> >> Any suggestions on how to proceed would be greatly appreciated. >> >> thank you, >> >> Jessica >> >> >> >> --------------------------------------------------------------------------- >> Stephen M. Smith, Professor of Biomedical Engineering >> Associate Director, Oxford University FMRIB Centre >> >> FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK >> +44 (0) 1865 222726 (fax 222717) >> [log in to unmask] http://www.fmrib.ox.ac.uk/~steve<http://www.fmrib.ox.ac.uk/%7Esteve> >> >> --------------------------------------------------------------------------- >> >> > > --------------------------------------------------------------------------- > Stephen M. Smith, Professor of Biomedical Engineering > Associate Director, Oxford University FMRIB Centre > > FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK > +44 (0) 1865 222726 (fax 222717) > [log in to unmask] http://www.fmrib.ox.ac.uk/~steve<http://www.fmrib.ox.ac.uk/%7Esteve> > --------------------------------------------------------------------------- >