Hi Freesurfer team,

Sorry for reposting. The previous email might have slipped through the cracks.

I was wondering if anyone know how to create subject-level Z score maps of thickness (against a set of healthy controls) after regressing out various covariates such as age / education ?

Thank you.

Best Wishes,
Elijah

Dr. Elijah Mak, Research Associate
Department of Psychiatry,  Old Age Psychiatry Group
University of Cambridge
Trinity College, CB21TQ, UK
http://www.neuroscience.cam.ac.uk/directory/profile.php?fkm24


On 23 May 2017 at 09:21:24, Elijah Mak (fkm24@medschl.cam.ac.uk) wrote:

Hi Doug,

I have used fscalc to create subject-level Z score maps of cortical thickness against a set of healthy controls. 

fscalc $i/surf/lh.fsaverage.mgh sub
group_mean_control_lh.mgh div group_std_control_lh.mgh --o
$i/surf/lh.Z.thickness.fsaverage.mgh; done

Beyond this, is there a way to adjust the Z score maps for age, and then produce an age-adjusted Z score map?

Thanks for your help.

Best Wishes,
Elijah



Dr. Elijah Mak, Research Associate
Department of Psychiatry,  Old Age Psychiatry Group
University of Cambridge
Trinity College, CB21TQ, UK