Dear FSLers,
I have searched the forum and coulndt find an answer to my question.
I have 4 groups of subjects and I want to test the continuum of whole brain GM abnormalities between these groups by a multiple regression model with a group variable, and with an independent estimation of group variances.
My groups are X, Y, Z and controls and I have a priori evidence of an increase of GM volume from X to controls (Cont > Z> Y>X) so this model will be one-tailed.
I also would like to include age and gender as covariates of no interest.
So how do I design a model on FSL-GLM ?
Thank you very much.
Cagri
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