 |
 |
Thanks for the advice. Seems to be working, but one problem I just ran into is that in three out of the 4 runs there are 3 EVs, but in the 4th run the subject didn't do the 3rd EV (it's an experiment on patients and I can't predict the movements they will do!). The analysis stopped part way with an error looking for cope3 in that run and doesn't seem to be continuing. Should I redo the analysis on that run and put in the 3rd EV with zero events? Thanks. On Sunday, January 12, 2003, at 07:32 AM, Stephen Smith wrote: > Hi - you will end up with a separate group-level analysis for each > first-level EV. Thus the group-level model does not refer to the > different > first-level EVs in this kind of case. > > It sounds like you want a multi-session multi-subject analysis like the > example titled "Multi-Session & Multi-Subject (Repeated Measures - > Three > Level Analysis)" at > http://www.fmrib.ox.ac.uk/fsl/feat5/detail.html#higher > > Hope this helps! > > Steve. > > > > On Sun, 12 Jan 2003, Andy Goldfine wrote: > >> I'm trying to combine 4 runs of each subject using FLAME where each >> run has >> 3 EVs. Under the Stats tab, should I be setting 4 inputs with 1 EV >> and 1 >> contrast or 3 contrasts (one for each EV)? Combining runs of >> multiple EVs >> doesn't seem to be addressed in the instructions. Thanks. >> > > Stephen M. Smith > Head of Image Analysis, FMRIB > > Oxford University Centre for Functional MRI of the Brain > John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK > +44 (0) 1865 222726 (fax 222717) > > [log in to unmask] http://www.fmrib.ox.ac.uk/~steve