Neither MNI nor Talairach space is not one specific space, but each corresponds to a kind of family of spaces. MNI has about a dozen popular variants. The Desai atlases were made using AFNI's @auto_tlrc function by alignment to the TT_N27 space. Consequently, the atlas is the TT_N27 variant of Talairach space.
Consider the following options to transform data or coordinates between MNI and Talairach spaces :
1. Affine, 2-piece affine and 12-piece affine transformations to go from generic Talairach to generic MNI.
[
afni.nimh.nih.gov]
[
afni.nimh.nih.gov]
2. 12-piece affine to go from TT_N27 to MNI_N27, and MNI_N27 to TT_N27.
[
afni.nimh.nih.gov]
[
afni.nimh.nih.gov] (same as in #1)
3. Affine+nonlinear warp to go from TT_N27 to MNI_2009c
https://afni.nimh.nih.gov/pub/dist/atlases/MNI_Desai/
4. Use FreeSurfer parcellations for MNI_2009c instead of Desai atlases. See aparc+aseg+REN_all.nii.gz in compressed file below.
https://afni.nimh.nih.gov/pub/dist/tgz/suma_MNI152_2009.tgz
Edited 3 time(s). Last edit at 01/23/2021 12:07PM by Daniel Glen.