I have a question about how long a higher lever analysis can be reasonably expected to run. I
recently set up a second level analysis on a dual G5 with 2.5 gigabytes of RAM, and after 36 hours
it was still struggling to finish the the first COPE. At this rate, the analysis would have taken over
two weeks to terminate. Is this even in the range of possibility for a valid design? Or is the
problem necessarily in the brain of the user?
The design came straight from the FSL documentation (Multi-Session & Multi-Subject [Repeated
Measures -- Three Level Analysis]). We ran an event-related protocol on 14 subjects, 3 scans
each, 170 volumes per scan. There were 12 contrasts done at the lower level. FLAME was run at
Thanks in advance for your help.