Just sample onto the mni152 surface with mri_vol2surf]. When you run mri_vol2surf, you can actually specify fsaverage as the target subjects and it will do both resamplings (ie, vol->mni152surf, then mni152surf-fsaveragesurf

On 3/20/2020 4:59 PM, Ryne Nichols wrote:

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I could do that, but for consistency with the some other results, it would be nice if I could get them on FSAVERAGE instead.

Are there any good ways to do that other than registering an MNI brain to the fsaverage T1 and carrying the statistical image with it?

thanks!

Message: 1
Date: Fri, 20 Mar 2020 10:47:41 -0400
From: "Douglas N. Greve" <dgreve@mgh.harvard.edu
<mailto:dgreve@mgh.harvard.edu>>
Subject: Re: [Freesurfer] SPM Volumes on FSAVERAGE surfaces
To: <freesurfer@nmr.mgh.harvard.edu
<mailto:freesurfer@nmr.mgh.harvard.edu>>
Message-ID: <10178766-753c-672f-3621-725f033f5a16@mgh.harvard.edu
<mailto:10178766-753c-672f-3621-725f033f5a16@mgh.harvard.edu>>
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Try running recon-all on the mni152

On 3/18/2020 5:05 PM, Ryne Nichols wrote:
>
> ????????External Email - Use Caution
>
> All,
>
> I'm having trouble getting good surface projections of SPM
results. My
> SPM results come from SPM normalization -- which should be
MNI152 space.
>
> I'm confused because fsaverage says it is in MNI305 space.
>
> I've tried a few commands, but the two that confuses me the most is:
>
> mri_vol2surf --mov SPMT_001.nii --mni152reg --trgsubject fsaverage
> --hemi lh --out lh_spm.mgh --projfrac-max 0 1 .1
>
> Also the similar command:
>
> mri_vol2surf --mov SPMT_001.nii --reg
> $FREESURFER_HOME/average/mni152.register.dat --trgsubject fsaverage
> --hemi lh --out lh_spm.mgh --projfrac-max 0 1 .1
>
> both give results in a wildly different place on the brain than
they
> should be -- it flips the SPMT_001.nii in the Y direction.
>
> If I do
>
> mri_vol2surf --mov SPMT_001.nii --regheader fsaverage --hemi lh
--out
> lh_spm.mgh --projfrac-max 0 1 .1
>
> things are close, but nor exactly how they should be (it seems).
>
> Finally, if i use a surface that's in MNI152 space
> (cvs_avg35_inMNI152) things look the way they should, e.g.:
>
> mri_vol2surf --mov SPMT_001.nii --regheader cvs_avg35_inMNI152
--hemi
> lh --out lh_spm.mgh --projfrac-max 0 1 .1
>
> thank you for any help you may provide!
>
> -ryne
>
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