As you explained, running dual regression on two different sets of ICs
presents a challenge. Why not do tcICA on data from both groups, together, and
then launch your dual regression from there?
On Saturday, October 08, 2011 16:16:41 you wrote:
> Hi,
>
> it has been suggested on the list to generate a set of RSNs from the
> "healthy" population and to run it against the "patient" group when
> large differences are expected. That's what I am trying to do because
> I have reason to assume so.
> I imagine this means running tcICA on both the control and the patient
> group separately and then (when calling the dual_regression script)
> using melodic_IC.nii.gz from the control.gica on the .filelist from
> the patient.gica - is that right? But how can I include possible
> additional/specific artefacts represented in the patient
> melodic_IC.nii.gz that might not necessarily be present or identical
> in the control group in the analysis? Fslmerge the ICAs of interest
> from the control melodic_IC into the patient melodic_IC and use that
> instead (and possibly throw out ICAs from the patient melodic_IC that
> look similar beforehand)? Did anyone do this succesfully and can
> advise?
> Thanks a lot,
> Cornelius
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