Dear FreeSurfers,

Is it possible to get tissue probability maps (for the purpose of using them in spm DARTEL, PVElab, etc) out of aseg.mgz?

I did read in a previous post (https://mail.nmr.mgh.harvard.edu/pipermail/freesurfer/2007-October/006384.html) that you can use mri_ca_label with the option -write_probs, but I could not find a -write_probs option.

If not, I'm wondering is there is any other possible way to get tissue probability maps from FreeSurfer?

Any help would be much appreciated.

Regards,

Subin