Hi,

My name is Lucille and I'm really new with Freesurfer : My questions are very basic, sorry. I just start a project in segmentation of cerebrum.

For converting a surface in volume. I would like to use mri_surf2vol but for that I need a volume registration file . For creating that file, I would use autoreg-sess.

In documentation, it is said that : 'The volume registration file contains the matrix that maps XYZ in the reference anatomical to XYZ in the functional volume'

My question is : what here, represent the anatomical reference ? The functionnal volume ?

Secondly, for autoreg-sess, the arguments are the subject name and the subject directory. I think the registration I need to create must be between my 2 volumes, so should I use the subject name and subject directory for my 2 subjects ?

Sorry,I am really messed...

Cheers

Lucille