Dear. Freesurfer team.

Hi.

I'm using freesurfer 4.5 version.

While doing the motion correction, an error occurred.

the command I used:

mc-sess -s $SUBJECT -df sessdirfile -fsd bold_retino -targrun $DATA_DIR/$SUBJECT/bold_decode/003

the error I have:

/home/jbang/Projects/replay/epi/replay01/bold_retino
3dvolreg -verbose -dfile 025/fmc.mcdat -base 025/tmp.mc-afni2.32291/tempvol.nii.gz -prefix 025/tmp.mc-afni2.32291/outvol.nii.gz 025/tmp.mc-afni2.32291/invol.nii.gz
++ 3dvolreg: AFNI version=AFNI_2008_07_18_1710 (Feb 10 2009) [64-bit]
++ Authored by: RW Cox
*+ WARNING:   If you are performing spatial transformations on an oblique dset,
  such as 025/tmp.mc-afni2.32291/tempvol.nii.gz,
  or viewing/combining it with volumes of differing obliquity,
  you should consider running:
     3dWarp -deoblique
  on this and  other oblique datasets in the same session.
 See 3dWarp -help for details.
++ Oblique dataset:025/tmp.mc-afni2.32291/tempvol.nii.gz is 3.263868 degrees from plumb.
++ Reading in base dataset 025/tmp.mc-afni2.32291/tempvol.nii.gz
++ Oblique dataset:025/tmp.mc-afni2.32291/invol.nii.gz is 4.564286 degrees from plumb.
++ centers of base and input datasets are 9.09 mm apart
** Input ./invol.nii.gz+orig.HEAD and base ./tempvol.nii.gz+orig.HEAD don't have same dimensions!
   Input: nx=74  ny=74  nz=32
   Base:  nx=74  ny=74  nz=33
** FATAL ERROR: perhaps you could make your datasets match?
ERROR: 3dvolreg
Invalid null command.

I think it's because the volume size is different.

The volume size for bold_retino is: number of slices 32

The volume size for bold_decode: number of slices 33

What should I do to correct this error?

Thank you for taking your time.

Best,

Ji Won