I am probably wrong, but doesn't the volumetric part of fsaverage correspond to MNI305 space rather than MNI152 space?
--Thomas
On Mon, Nov 7, 2011 at 9:00 AM, Bruce Fischl fischl@nmr.mgh.harvard.edu wrote:
Hi Paolo,
I think fsaverage has this in the aseg.mgz.
cheers Bruce On Mon, 7 Nov 2011, Paolo wrote:
In the meanwhile i did some research, and it looks like freesurfer does not use MNI152 as default template, am i right? it seems that the default template is the fsaverage subject, which in fact does not look like very realistic.
Is there any way to get a realistic brain & segmentation that is "idealized" enough, and still in talairach space (freesurfer space)?
maybe the MNI152 after recon-all and mri_transform to apply back the transformation?
i am sorry if these questions look unreasonable, i am new of freesurfer, and still have problem orienting myself in the documentation :)
best, Paolo
On 05-Nov-11 00:57, Paolo wrote:
Hello
I am a new user of freesurfer. I was wondering whether the brain regions for the MNI152 dataset are available anywhere (i mean the template brain regions for the default MNI152 template).
I have also another question: i have the dti fiber tracts extracted and computed and already in .trk format. I was wondering: to bring them back into the template MNI152 space, is it sufficient to apply the talairach.xfm transformation matrix to the vertex data, or do i also need to use the m3z files (which look like a nonlinear deformation field)?
thanks in advance! Paolo
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