I'm relatively new to melodic and dual regression, and I've read through the manual and dual regression poster and other related articles, but I'm still not exactly sure how all work.
I have 3 subjects, each scanned twice, under two different conditions, 3D and 2D, where subjects passively viewed a 3D video clip and a 2D video clip in separate sessions without a model. If I want to compare the two conditions, would I first use melodic concat-ICA and then use dual regression to do this?
If so, for the melodic inputs, do I set up the 3D group and the 2D group inputs separately, or do I put them all together in the melodic gui setup?
When running the dual regression command: dual_regression <group_IC_maps> <des_norm> <design.mat> <design.con> <n_perm> <output_directory> <input1> <input2> <input3>...1. How do I determine the number of permutations? 2. How do I set up the design.mat and design.con, if it was a model free design?
I've test run dual regression just to see what outputs I'd get, but I do not understand what they mean or what to do with the outputs. Is there another step I have to do after running dual regression?