Hi, Yina,
A quick mind to me is that you can do Group1 (A1 กษ B1) - Group2 (A2 กษ
B2). [ กษ means combination]. while I am not quite sure how to do that
in SPM. Or you simply report the result and compare it with eye sight.
Another way is using Marsbar to get the ROI of regions common to task
X & Y in Group A, then extracting the signal change% of this ROI in
group A, then compared it to that of group B.
Good luck!
Gao
On 30 May 2012 10:35, mayina <[log in to unmask]> wrote:
> Dear SPMers,
>
> In my data analysis, we have two groups (let's say Groups A & B), and I have
> two Tasks (tasks X & Y).
> Using conjunction analysis, I have observed brain regions common to task X &
> Y in Group A, but not common activation in Group B.
> I wonder how can I do a two-sample test on the conjunction result to show
> that result is statistically significant between the two groups?
>
> Thank you very much for your time!
>
> Yina
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