what do you mean to control age and gender on both lGI and thickness? If you have thickness = f(gender,age,lGI), then you control for gender, age, and lGI on thickness.

On 10/20/2015 06:20 AM, marica.padula@libero.it wrote:

Hi,

I am running a vertex-wise correlation analysis between local gyrification (-- y) and thickness (--pvr) using as covariates age and gender. I want to control for the effect of age and gender both the lGI and the thickness values. Does the command does this? Or the effect of the covariates is only taken into account for the lGI?

Here my command line:

mri_glmfit --glmdir left --y lh.lGI.mgh --fsgd fsgd_control.txt --pvr lh. thickness.mgh --C contrast_control.txt --surface fsaverage lh

And my contrast:

0 0 0 1 (first 0 for the class, second and third for the 2 covariates).

Thanks, Marica _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer