Thanks, Doug for that quick response!

Does mask.mgh varies between different set of subjects and (or) different set of contrasts for a given hemisphere? Since fsavearge doesnt change, the mask that is used for statistical comparisons should change neither unless I change --trgsubject to some other. Am i right?

thanks

regards

VM

On Thu, Dec 22, 2016 at 11:32 AM, Douglas N Greve <greve@nmr.mgh.harvard.edu> wrote:


On 12/22/2016 01:33 PM, neuroimage analyst wrote:
> Hi,
>
> I am just curious whether the mask.mgh file returned in glmdir folder
> created from lh.cortex.label?
In part. It will also include any voxels that have 0 values in any of
the inputs (--y)
>
> If so, how can I create my own surface mask from the label file?
> (mri_label2vol and mri_vol2surf ?)
mri_label2label with the --mask option
>
>
> Second: How can I compare the subcortical volumes between the 2 groups
> using glm tools in freesurfer? Specifically, how do I call
> mris_preproc and mri_glmfit?
Run asegstats2table to create a table, then run mri_glmfit as before but
with --table instead of --y
>
> I appreciate your response.
>
> Thank you
>
> Regards
>
> --VM
>
>
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> Freesurfer@nmr.mgh.harvard.edu
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--
Douglas N. Greve, Ph.D.
MGH-NMR Center
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