Is there a way or reference this smoothing detail in a paper? There are people who believe that the soothing should be done at the whole brain level and then apply the mask (--label), during the GLM analysis.

Thanks again!
Mihaela

On Wed, Mar 15, 2017 at 3:12 PM, Douglas N Greve <greve@nmr.mgh.harvard.edu> wrote:
yes, that is the right way to do it


On 03/15/2017 01:18 PM, Mihaela Stefan wrote:
> Hello FreeSurfers,
>
> I would like to run a group analysis on cortical thickness using
> existing Desikan labels.
>
> When I run the command for smoothing, should I replace *--cortex* with
> *--label-trg*? In other words, for ROI analysis, should we smooth
> *only* the target mask?
>
> mri_surf2surf --hemi lh \
>    --s fsaverage \
>    --sval lh.gender_age.thickness.00.mgh \
>    --fwhm 10 \
>   *--cortex*  \
>    --tval lh.gender_age.thickness.10B.mgh
>
>
> I followed the instructions from here:
> https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/GroupAnalysis
> https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/AnatomicalROI
> https://surfer.nmr.mgh.harvard.edu/fswiki/mri_glmfit
> http://freesurfer.net/fswiki/mri_surf2surf
> Thank you!
> Mihaela
>
>
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--
Douglas N. Greve, Ph.D.
MGH-NMR Center
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