Hello, I tried to run group-level MELODIC analysis using the following script: melodic -i input_files.txt -o groupICA15 \ --tr=0.72 --nobet --bgthreshold=1 -a concat \ --bgimage=$FSLDIR/data/standard/MNI152_T1_2mm_brain.nii.gz \ -m $FSLDIR/data/standard/MNI152_T1_2mm_brain_mask.nii.gz \ --report --Oall -d 15 However, I ran into the following error: : ERROR:: background image and data have different dimensions I presume this is due to the fact that the images I am using are not standardized. What is the ideal way to overcome this issue? Best Regards, Narlon Silva ######################################################################## To unsubscribe from the FSL list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=FSL&A=1