Hi,
 
I have two groups (exp and control) of resting state fMRI and each group has two conditions (pre and post intervention). I'd like to look at group x condition interaction at the 2nd-level analysis with one seed ROI. Here are my questions:
 
1. How do I set up the contrast at the 2nd level analysis? Is something like the following correct?
    I selected "See-to_voxel" analysis. For "Between-subjects contrast" [1 -1], "Between-conditions contrast" [-1 1], and "Between-sources contrast" [1] 
 
2. Is it possible to do some of the 2nd-level analyses in SPM8 or SPM12? If it is what kind of the 1st-level analysis files I should use?
 
3. This question is related to Question 2. There are several different types of output files (listed below) after the 1st-level analysis. What are these files? Where can I find the descriptions of these output files?
     - BETA_*_source.nii
     - corr_*_source.nii
     - p_corr_*_source.nii
     - pFDR_corr_*_source.nii
     - Se_Subject*_Condition001.nii
       Se_Subject*_Condition002.nii
 
     Can I use any of these output files for 2nd-level contrasts in SPM?
 
Thanks much for your help.
 
Ben