I would also like to ask the following question:
I am interested to compare results between two samples. In the first sample nuisance regression was done by using fixed regressors (movement, physiological recording, white matter, etc.) and a band pass filter in a certain frequency range. On the other hand, in the second sample nuisance regression was done by using only the band pass filter.
Are these datasets comparable considering that the conditions in the regression were different?
Thanks in advance,
Karel