> Now I'd like to determine what is driving the differences, and this is where I am getting stuck.
> How do I figure out what is driving the differences in connectivity in the two groups?
Hi Colm,
You probably have already obtained the PPI effect for each group separately and that should help you interpret the group comparison. Other than that, I'm not so sure what exactly you meant by the driving force behind the group difference. Could you elaborate a little bit more?
Gang