Dear freesurfer experts,

I would like to know how to have paint surfaces (.w) from different subjects into a common surface (fsaverage for example) and/or would like to know if my current approach is correct:

I have first used the general "recon-all" step on some T1-w images.
Subsequently I used "mris_expand" to create the different surfaces at different depths.
with "mri_vol2surf" I was able to obtain the  T1-w images in the various surfaces.

At that moment my different subjects surfaces had different number of vertices and I would like to average them together.

Using matlab, read_surf, I loaded the coordinates in the sphere of the subject data and of the fsaverage data.

Subsequently I used the matlab  function distributed with freesurfer, mesh_vertex_nearest, to find the nearest vertices of the subject sphere surface to those of the fsaverage surface.

I then created a new paint surface where only those vertices were taken into account.

Could I say that now all my subjects are co-registered and that I can use the PALS12.annot distributed with fsaverage to extract the properties of the different Brodmann areas?

Is there a better way to do this?

Thanks in advance,

Jose Marques