Tim Meeker Wrote:
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> I have resting state data in different brain
> states (pain state versus non-pain state) in the
> same individuals. Each individual has different
> pain ratings during the scan. I want to regress
> the individual's pain ratings to the group t-map
> results on a voxel-wise basis, in an attempt to
> determine what significant differences between
> states are (more) likely specific to pain. I
> cannot figure out exactly how I can do this with
> the various programs in the AFNI package.

To clarify, do you have one z-score and one pain rating per brain state for each subject's correlation analysis (with a seed region)?

In addition, the following sentence is very confusing: "I want to regress the individual's pain ratings to the group t-map results on a voxel-wise basis, in an attempt to determine what significant differences between states are (more) likely specific to pain." Are you looking for the brain state difference while controlling for the pain rating, OR are you looking for some sort of correlation between connectivity and pain rating?

Gang