I'm trying to employ a FS-Fast group analysis. I worked through the individual analysis work flow up through mkanalysis-sess. My experiment involves a single scan of someone watching a video for five minutes, so averaging over conditions and defining contrasts don't make sense. (Actually, I have other scans of them watching other videos, so I could use that, but I'd rather not at this point.) So I skipped those steps and went to func2tal-sess. However, when I try to run that, I get ERROR: cannot find any sessions.

I constructed the session directory structure using unpacksdcmdir and everything looks right so far as I can tell. My session is called az_45 which is also the name of the subject. My paradigm file reads: 0.0000 1 310.000 SA 310.0000 0 5.000 NULL I wasn't sure if this would work better as an "event-related" design or a "blocked" design (one event or one block depending on how you look at it) so I tried both: mkanalysis-sess -analysis video_event -TR 1.5 -paradigm video.par-designtype event-related -nconditions 1 -timewindow 310 mkanalysis-sess -analysis video_block -TR 1.5 -paradigm video.par-designtype blocked -nconditions 1 -timewindow 310 The voxels in my BOLD scan are 3.44x3.44x4 so I ran func2tal-sess -res 4 -analysis video_block -s az_45 -d az_45 and func2tal-sess -res 4 -analysis video_event -s az_45 -d az_45 but in both cases I get the same error, "cannot find any sessions". I get the same error with func2sph-sess.

Any thoughts would be greatly appreciated.

Thank you,