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Hi - the error messages make it seem pretty clear that these are not valid NIFTI files - if you'd like to upload one we can take a quick look. Cheers. On 14 Dec 2007, at 19:10, Ariana Anderson wrote: > I'm trying to run both multi-session and tensor ICA from MELODIC on > some > files using FSL 4.0.2. and MELODIC 3.0.5. > > The processing has failed at the prestats using both nifti and > analyze image > formats. I've run the .img formats using the regular headers and > using the > header files padded by "correctheader". I can run melodic from the > command > line on these files individually if I specify --nobet. If I specify > "no > bet" in the gui and still run the group ICA analysis, the program > still > won't complete. > > The log is below. Thanks in advance for any advice. > > ========================= > Prestats > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fslmaths > /Volumes/Songbook1/data/mscohenlab/ariana/4D/RAWDATA/nifti1 > prefiltered_func_data > Total original volumes = 125 > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fslroi > prefiltered_func_data example_func 62 1 > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/mcflirt > -in prefiltered_func_data -out prefiltered_func_data_mcf -mats -plots > -refvol 62 -rmsrel -rmsabs > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > > /bin/mkdir -p mc ; /bin/mv -f prefiltered_func_data_mcf.mat > prefiltered_func_data_mcf.par prefiltered_func_data_mcf_abs.rms > prefiltered_func_data_mcf_abs_mean.rms > prefiltered_func_data_mcf_rel.rms > prefiltered_func_data_mcf_rel_mean.rms mc > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fsl_tsplot > -i prefiltered_func_data_mcf.par -t 'MCFLIRT estimated rotations > (radians)' > -u 1 --start=1 --finish=3 -a x,y,z -w 640 -h 144 -o rot.png > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fsl_tsplot > -i prefiltered_func_data_mcf.par -t 'MCFLIRT estimated translations > (mm)' -u > 1 --start=4 --finish=6 -a x,y,z -w 640 -h 144 -o trans.png > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fsl_tsplot > -i > prefiltered_func_data_mcf_abs.rms,prefiltered_func_data_mcf_rel.rms -t > 'MCFLIRT estimated mean displacement (mm)' -u 1 -w 640 -h 144 -a > absolute,relative -o disp.png > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/bet > prefiltered_func_data_mcf prefiltered_func_data_bet -F > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fslmaths > prefiltered_func_data_bet -thrp 10 -Tmin -bin mask -odt char > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fslmaths > prefiltered_func_data_bet -mas mask prefiltered_func_data_bet > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fslmaths > mask -kernel gauss 2.12314225053 -fmean mask_weight -odt float > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fslmaths > prefiltered_func_data_bet -kernel gauss 2.12314225053 -fmean -div > mask_weight -mas mask filtered_func_data -odt float > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > > /Network/Servers/fmri00-miles.hosted.ats.ucla.edu/Volumes/home/ > ariana/bin/fsl/bin/fslmaths > filtered_func_data -ing 10000 filtered_func_data -odt float > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ** WARNING: posn not header size (0, 348) > ERROR:: Empty mask image > --------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------