That is not normal. Are you sure you are looking at the different maps that are
created?
Also, we are recommending that people not use MCZ (especially with such a low
threshold). Permutation is more accurate. See
http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/MultipleComparisonsV6.0Perm?highlight=(permutation)
On 12/10/18 1:52 PM, Barletta, Valeria wrote:
Good morning!
We are running a GLM with 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
If we change the option "pos" with "neg" or "abs", we obtain exactly the same
cluster (attached).
Is this normal? What is the option "pos" staying for exactly?
Thanks,
Valeria
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