Hi Rick,
Just thought I'd follow up with my previous questions:
1) Mapsaiconahedron uses affine warping?
2) In looking at the SUMA_AligntoExperiement command it uses 3dWarpDrive and 3dAllineate for warping my native brain surface to MNI. Do you see any issues if I replaced these command lines with nonlinear afni tools (ie 3dQwarp) to perform the nonlinear warp instead or is this not valid for surface based analyses?
3) Are all surface tools such as SurftoSurf and 3dVol2surf affine transforms (assume so based on your previous responses), and if so are there any tools external to AFNI that use nonlinear that you are aware of?
Thanks,
Ajay