Dear all,
(1) The input to randomise is a merged 4D volume. But what are the 3D volumes that go into that 4D volume? cope? pe? tstat? zstat? The inputs to randomise will be the results from my GLM fixed effects analysis per subject. But which file from the 'stats' directory do I use?
(2) Also, how best to determine the variance smoothing kernel size? I have 16 subjects in my group. Just to be sure, the -v <value> is the *HALF* width at half max? I have already applied a spatial smooth of 6 mm FWHM in the preprocessing step. The input data to randomise have a voxel size of 2x2x2 mm3 (MNI space).
Thanks,
- BettyAnn
|