Dear FSL community,
I am trying to run a seed based structural covariance analysis to compare to resting state data. I have four seeds (bilateral amygdala and accumbens). I used the volumes to get the structural covariance maps for each. However, I am stuck as to how to see if this connectivity is associated with another continuous variable (let's say age). What would be the model to test if structural covariances increases/decreases with age for each of the seeds. Would it be modelled as the interaction (ie Y = lamygdala_vol + age + lamygdala*age)? Thank you!
Best,
Alex
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