Hi SPM Experts,
I normalised my functional images using DARTEL. However, I need to transform convert my ROIs in MNI space to functional native space using the SPM framework. I managed to do so, but I kindly wanted to ask whether the first transformation from standard space to Template space was now tested on SPM or whether there is a function for it.
I know there was this untested shortcut in a previous thread suggested by John Ashburner:
https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=spm;5d8f8ab6.1208
where the matrix in the ROI header in the standard space could be tweaked so that it is in alignment with the population average (i.e., Template_6.nii) with this formula:
M2 * inv(M3) *M1, where:
M1 = voxel-to-world matrix of my MNI-space ROI,
M2 = voxel-to-world matrix of the population average space
M3 = affine transformation matrix in the Template_6_2mni.mat.
At that time (23 August 2012) this was untested.
Is there now an alternative approach to go from MNI to Template space using SPM?
Thank you for your help
Best Regards
Loris Naspi
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