We do not know if the continuous independent variable (chocolate loving on the Godiva scale) changes between the two preferences.

That's what we want to find out via AFNI/imaging.


Put in more realistic terms, we have kids from across the range of irritability--with ratings of irritability on a continuous scale.

This is not a standard dichotomous group AFNI analysis.

Meaning--these participants were not gathered from any particular DSM categorical diagnoses (ie I did not pick them based on depression, bipolar disorder, ADHD etc.

And this is not a dichotomous/categorical independent variable "Patients vs controls" analysis.

I want to test the relationship between:
a) independent variable--continuous--parent rating on irritability scale

b) dependent variable--fMRI activation during a rigged feedback task--at least 2 main behavioral events--brain activity during rigged feedback vs. brain activity during accurate feedback.

How do I do this in AFNI?

Tnx!

-Dan