Dear all,
I would like to vertex-wise compare the left and right hemisphere thickness in a group of subjects.
Would it be okay to just substract lh.hickness.0.mgh and rh.thickness.0.mgh (i.e. the files concatenating the thicknesses of all patients), then smooth and then perform a one sample t test? Or does freesurfer include a more sophisticated test to perform such a comparison?
Best, Martijn
Hi Martijn
You can do nterhemispheric comparison as in the following link: http://surfer.nmr.mgh.harvard.edu/fswiki/Xhemi
shantanu
On Fri, June 27, 2014 10:39 am, Martijn Steenwijk wrote:
Dear all,
I would like to vertex-wise compare the left and right hemisphere thickness in a group of subjects.
Would it be okay to just substract lh.hickness.0.mgh and rh.thickness.0.mgh (i.e. the files concatenating the thicknesses of all patients), then smooth and then perform a one sample t test? Or does freesurfer include a more sophisticated test to perform such a comparison?
Best, Martijn _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
That's great. Thank you.
On Fri, Jun 27, 2014 at 5:05 PM, Shantanu Ghosh < shantanu@nmr.mgh.harvard.edu> wrote:
Hi Martijn
You can do nterhemispheric comparison as in the following link: http://surfer.nmr.mgh.harvard.edu/fswiki/Xhemi
shantanu
On Fri, June 27, 2014 10:39 am, Martijn Steenwijk wrote:
Dear all,
I would like to vertex-wise compare the left and right hemisphere thickness in a group of subjects.
Would it be okay to just substract lh.hickness.0.mgh and rh.thickness.0.mgh (i.e. the files concatenating the thicknesses of all patients), then smooth and then perform a one sample t test? Or does freesurfer include a more sophisticated test to perform such a comparison?
Best, Martijn _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
-- Shantanu Ghosh, Ph.D. Harvard Medical School & Massachusetts General Hospital Martinos Center for Biomedical Imaging -- Not only is the universe stranger than we think, it is stranger than we can think. -Werner Heisenberg
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