Hi Chris,

I was hoping you could provide some clarification about if it's possible to overlay CAT12 spm T-stat giftis in Surfice (or other statistical maps).

I've tried loading CAT12 32k template surface giftis ("spm/toolbox/cat12/templates_surfaces_32k/mesh.central.freesurfer.gii) and the spmT_0001.gii (from the two-sample T test contrast that I've run) as an overlay. It will load the mesh.central.freesurfer.gi, but it won't load the statistical map (it doesn't even give any errors, just nothing happens).

I'm not very familiar with the gifti format, but when I open the spmT file with a text editor, it's pointing to an external file spmT_0001.dat in the same directory. Is Surfice having a problem loading this data in? The gifti files in your example on the wiki have the data embedded in the actual file. Is there a way to combine the CAT12 .gii and .dat files so Surfice knows how to load it? Thanks in advance!!