I have a question. I used Brainstorms function for converting source files in SPM12 format.
That gave me .dat and .gii files
I used to work with .nii files in SPM, but I've never encountered with .gii files.
I read on the ResearchGate that CAT12 toolbox for SPM is best for working with this type of files.
I ve tryed to do full factorial analisys, I ve got SPM.mat file, but "Estimate surface models" gave me an error
"Error using spm_spm (line 652)
Please check your data: There are no inmask voxels."
Сan you tell me what does this mean?
Perhaps I should somehow prepare the files specifically before working in CAT12?