Hi
On 13 Jul 2010, at 17:58, Hongyu Yang wrote:
> Hi FSL list,
>
> I am going to do group ICA analysis, and have some problems on reprocessing the fMRI data. For some subjects I found their brain moved more than one voxel, and some volumes need to be removed from the whole data. In FEAT analysis, I just need to add a confound text document to removed some volumes. Can we do similar thing in MELODIC to removed some unwanted volumes?
Nope, melodic does not do simple GLM analysis so you can't just use this. You could pass the data through a confound GLM analysis and run melodic on the residuals, though
> Another problem is, a few subjects' data were shorter than most of the subjects, can MELODIC accept these data with different volumes for subjects?
Not in the current release version.
> Now we have 10 controls and 15 patients, the samples are not matched. Do I have to use 10 controls and 10 patients in group analysis to match them? Can I use 10 controls and 15 patients for group analysis?
>
That's no problem, just pass all 25 data sets in
hth
Christian
> Thanks for your kind help,
>
>
> Hongyu Yang
> Division on Addiciton
> Psychiatry Department
> UT Southwestern Medical Center
> Dallas, TX 75248
_______________________________________________
Christian F. Beckmann, DPhil
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