Hello, If this is still an issue, can you confirm the files are blank with ( e.g. ) fslstats -r -R? Kind regards Matthew -------------------------------- Dr Matthew Webster FMRIB Centre John Radcliffe Hospital University of Oxford On 18 Jun 2018, at 21:45, Rachel Greene <[log in to unmask]<mailto:[log in to unmask]>> wrote: Hi All, After running ICA Aroma and regressing out CSF and white matter, I applied a bandpass filter using the following command: fslmaths $OUTPUT/denoise_residual_nocsfwm.nii.gz -bptf 25.0 -1 -add $ICADIR/timeMean.nii.gz $ICADIR/final_denoised_func_data.nii.gz This worked for most of my 150+ runs; however, about 15 of them failed. When I viewed these output files in fslview they just showed an empty grey box. The denoise_residual_nocsfwm.nii.gz and timeMean.nii.gz files appear to be fine, so I'm not sure where this is going wrong. I also tried running this directly from the command line for one participant (rather than as a batch script), but that still did not work. Any suggestions would be appreciated! Thanks, Rachel ######################################################################## To unsubscribe from the FSL list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=FSL&A=1 ######################################################################## To unsubscribe from the FSL list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=FSL&A=1