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I am attempting to nonlinearly transform T1 images and their previously aligned EPI datasets to MNI space. Should I use auto_warp.py on the T1 and EPI datasets individually, or should I use auto_warp.py on the T1 images and then use 3dNwarpApply on the EPI data with the -nwarp 'anat_un.aff.qw_WARP.nii' option? This is new for me, so thanks for your help.