Hi all, I would like to see the common regions in different five con images. So just to confirm what I am trying to do: I opened one of the con images using SPM > result, then select the required threshold, then saved pressed save all clusters ( binary). I did that for all of the five con images. Then I add them in Imcalc using ( i1+i2+i3+i4+i5). Now if I want to see the common areas should I do this : i1>4 ? Can I combined the last two steps in one by saying ( i1+i2+i3+i4+i5) > 4? Thanks Aser