Dear FSL Experts,
I apologize if this is really trivial, but I am a bit confused about the dual regression outputs, more specifically from dr_stage2_subject[#SUB]Z.nii.gz. To my understanding these are the Z scores of the individual subject component maps which are not normalized. However I had noticed that each of these files had 2 times the number of ICs (I had ran temporal concatenated ICA with MELODIC with 25 components). I also noticed that component 0 and component 26 and subsequently components 1 and 27 etc. are similar but have opposite polarities ? Could you please clarify what the additional 'components' are. Thank you very much.
dominic
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