Hello,

I have a question about how I could map stats on surface created in Caret.

Each suubject's anatomical is first registered in MNI space, and then segmented and flattened using Caret's SureFit. It is then morphed into Colin atlas space using 6 landmarks. Deformation matrix is created here.

For EPI, I ran 3dDeconvolve to get beta coefficients for each covariates, for each subject. Using 3dbucket, betas for the covariates of interest are extracted and put into one HEAD/BRIK. Our goal is to run 3dANOVA3 and project the stats onto surface (apply the deformation matrix), but I wonder when this should be applied.

I guess my options are
1. morph betas, run 3dANOVA, and then project the stats onto surface
2, register betas into MNI space, run 3dANOVA, morph stats, and then project the morphed stats onto surface.

the first option sounds more intuitive, but I'm not sure about the AFNI-Caret file type compatibility, ot there might be better approach to this problem...

Any suggestions?
Thanks in advance! Akiko