Hello all,

This question has probably been asked before but I am still confused about it.
The MNI template used in SPM, MNI, FSL etc and now in AFNI which is the avg152 brain is a 2*2*2 [91*109*91] brain.
The ICBM 452 template and the N27 brain are a 1*1*1[161*191*151].

A structural in the orig format converted into the tlrc fomat gets a brain voxel size of 1*1*1[161*191*151] and so is not using the avg 152 brain. It is also using the big Talaraich bounding box.

A structural normalized in SPM, MNI, FSL etc uses the avg 152 brain as the template. Am I correct in assuming that when this normalized brain is converted back into AFNI BRIK and HEAD format, and the Where am I option in Talaraich is used, it might give erroneous results because of the different template?

Also if the above is true, why is the average152 template a part of the AFNI toolkit?

nameeta