Excellent, thanks!
2016-10-12 20:27 GMT+02:00 Douglas N Greve <gr...@nmr.mgh.harvard.edu>:
>
>
> On 10/08/2016 02:43 AM, Anders Hougaard wrote:
> > Dear Freesurfers,
> >
> > Please see the attached image.
> > It shows inflated fsaverage surface with gamma.mgh overlaid.
> > Gamma.mgh is from one contrast of a standard group analysis of
> > cortical thickness (two groups A and B, two contrasts A>B and B>A).
> >
> > 1) Is it correct to interpret the gamma values as between-group
> > difference of cortical thickness in mm?
> It depends on how you set up the contrast. If it is a simple A vs B,
> then yes, mm is correct.
> >
> > 2) I would like to reproduce the histogram in another software. Is it
> > possible to extract the gamma values for each vertex for this purpose?
> You can do it in matlab easily enough, eg,
> gamma = MRIread('gamma.mgh');
> gamma.vol will be the pixel values
> >
> > All the best,
> > Anders
> >
> >
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>
> --
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> gr...@nmr.mgh.harvard.edu
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>
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