> I am currently using marsbar to do the ROI analysis. I could not get any
> significant activation using 1-sample t-test within a group under spm5.
> I was suggested to use ROI analysis. But I am really new to marsbar and hope
> to get some advice from you.
> I have some regions of interest in mind. One of them is left supplementary
> motor cortex (-16 3 63). If I want to use ROI analysis with Marsbar. How
> should I define this region. Could I use box to restrict the area? If it is
> possible, what is the range for the x, y and z (Hope it makes sense).
I think you want the marsbar mailing list ;)
Have you seen the section on defining ROIs in the tutorial?