To compare cortical thickness between groups, I want to process analysis of covariance (ANCOVA) adjusting for age.
When "mri_glmfit" process, do I insert "0 0 1 -1" in .mtx file?

Would you please tell me how to process ANCOVA with age as covariate.

 

FSGD FILE
Class Group1
Class Group2
Variables Age
Input subject1 Group1 30
Input subject2 Group2 40

Input subject3 Group1 25
Input subject4 Group2 44

Input subject5 Group1 33

Input subject6 Group1 32

Input subject7 Group2 44

 Input subject8 Group2 42