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On 1st level, conjunction analysis is done by highlighting two contrasts in the results part. But I have problem with doing conjunction analysis on the 2nd level as there is no new con files generated from the 1st level for the conjunction. My case is like this: on 1st level, I have the con files of : A1-A2 ; B1-B2 for each subject on 2nd level, I want to do conjunction of : A1-A2 Vs B1-B2 for all subjects Since on 2nd level the con files of A1-A2, B1-B2 are at different folders after doing 1-sample t-tests of the constrasts, I couldn't select the two contrast simultaneously. I've also tried to use paired sample t-test with con files of A1-A2 & B1-B2, but the error message appeared : "There is no significant voxels" and the estimation process stopped. Could anyone tell me how to perform conjunction analysis at the 2nd level? Thanks a lot! Tiffany