Hello,
I'm doing regression analyses with cortical thickness at the level of voxel.
Should I correct the total GM volume by introducing this parameter as a
confounding variable? Shoud I include the intracranial volume as an additional
nuisance variable? If positive, I assume that these variables can only be
introduced as covariates if they differ between groups. Am I correct?
I saw in one message that we should not corret for thickness. Why not?
Thanks in advance and best regards,
Kelly
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