Hello afni experts,
I would like to calculate the tSNR. The analysis I am working on is trying to extract CerebroVascular reactivity from resting state fMRI so the preprocessing of the data is a little different.
I motion correct and blur the data. Then I linear detrend and bandpass filter. And finally I run the regression which includes 6 motion regressors and .
My question is if I want to calculate the tSNR do I use the signal that is motion corrected and blurred (but not linear detrended and bandpass filtered) and divide this by the residuals from the regression?
Thank you very much for any help in advance!
Carolin