[Freesurfer] Contrast files - 2 groups, 4 covariates

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Hello!

I am having trouble with creating my contrast files. I did go over FsfdExamples (https://secure-web.cisco.com/1ezcK_pFVwJfmWpdVsJeZORU_8kaDi3SfZnw3BO98zpMkJc...). However, I am unsure how should I create my contrast files if I want do a 2 group comparison while controlling 4 covariates:

Class: Patients, healthy control

variables are: Age,gender,episodes,residuals,

Here is how I set up my contrast files:

1 -1 0 0 0 0 0 0 0 0 - Contrast1 (measure group differences) 1 -1 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125 – Contrast 2 (measure group differences while accounting for covariates)

For some reason I think I am setting up those contrast files wrong… Any help is appreciated.

Best, Liliana