Dear Freesurfers,

I am performing a GLM analysis on two groups (patients versus controls) and one variable (age).

We are using the following option to correct for multiple comparisons:

mri_glmfit-sim --glmdir ${glm_dir}/${hemi}_contrast-${contrast}_${surfname_t1} --cache 1.3 pos/abs

Is it normal to have those 2 different results when using pos or abs option? (see screenshots)

Thank you!

Vale