afni.nimh.nih.gov

Hi Josh,

In afni_proc.py, assuming the EPI data is resampled
(because of alignment to the anat or transformation
to standard space), the voxel resolution applied will
default to isotropic voxels of the minimum original
dimension, truncated to 3 significant bits (so 3.75
is truncated to 3.5).

Resampling ahead of time would blur the data and
destroy any slice timing. There is no reason to do
so.

Please see '-volreg_warp_dxyz DXYZ' in the -help
output:

afni_proc.py -help

- rick