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I'd suggest you threshold your statistical maps; convert them to binary (1s and 0s) using imcalc (i1>0 on each thresholded image); then combine the two maps using i1+2.*i2 (for 2 images) or i1+2.*i2+4.*i3 (for 3 images) using imcalc. This will give you discrete values for the significant areas of each contrast as well as any combination of overlap between 2 or more contrasts. Hope this helps. Best Regards, Donald McLaren ================= D.G. McLaren, Ph.D. Research Fellow, Department of Neurology, Massachusetts General Hospital and Harvard Medical School Postdoctoral Research Fellow, GRECC, Bedford VA Website: http://www.martinos.org/~mclaren Office: (773) 406-2464 ===================== This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is intended only for the use of the individual or entity named above. If the reader of the e-mail is not the intended recipient or the employee or agent responsible for delivering it to the intended recipient, you are hereby notified that you are in possession of confidential and privileged information. Any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this e-mail unintentionally, please immediately notify the sender via telephone at (773) 406-2464 or email. On Tue, May 19, 2015 at 5:42 AM, s yq <[log in to unmask]> wrote: > Dear SPMers, > > In spm, one could simultaneously select two contrasts (within a same > SPM.mat) then check the result of conjunction analysis. But, how about if > the two contrasts do not belong to the same SPM.mat? is there any way to > perform the conjunction analysis? Thanks! > > Best regards > Yiquan > > >