Thank you both for the replies, this is very helpful! Ted, I had come across the post you linked to and since I would like to include some spike regressors, it made me think adding them after gica might be a good idea.
On a related note, would it be recommended to include global/WM/CSF signal in a similar fashion? I know there has been discussion over whether regressing out the global mean introduces further complications in seed-based connectivity and whether or not it's useful to do before gica. Would it perhaps be beneficial to add these regressors in at DR stage 2 similar to the motion regressors?
I'll also keep my eyes open for any announcements on the auto-ICA denoising, sounds great!
Thanks again for your help,
Jeremy
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