I think you can pretty much treat the stage 2 maps from dual regression, one
volume per subject, as if they were typical activation maps and carry out your
F-test however you usually would (e.g. using randomise). Just be careful with
the interpretation ;-)
On Thursday, February 23, 2012 19:02:17 you wrote:
> Hi All
>
> I am using the dual regression script for the first time. I am keen to
> perform a group x condition analysis, and would like to use F-tests to
> calculate the main effects of group and condition, and their interactions.
> I am stumped on how to proceed with this. It does not appear to be
> possible to feed an F-test matrix into the dual regression script; is it
> possible perhaps to use the corresponding tstat images and calculate the
> F-values using fslmaths?
>
> Thanks for your help with this: there is a good chance I am overlooking
> something fairly obvious.
>
> Kind regards
>
> Chris
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