Thank you very much Alfonso!

Just double checking: the RETROICOR files have to uploaded as first level covariates during setup, and then selected as confounds for denoising, correct? The script generates files with a *.1D extension, but conn doesn't seem to recognize those, but converting to *.txt seems to work for loading in the RETROICOR files. 

On another note, is there a preferred/simplest method for exporting seed-voxel BETA values at the single subject level to a .txt or .mat format? I know  there's a load_nifiti matlab function that could work, but wanted to see if you (or the conn toolbox) has a better implementation. 

Best,
- Harris