Hi Gang,
I have a related question regarding these steps for the PPI.
I preprocessed my data with AFNI_proc.py and plan to run a PPI. However, I don't believe I had the cbucket file saved. I am guessing I need that file to run 3dsynthesize?
But my main question is after running 3dsynthesize, do I subtract the regressors of no interest from the concatenated file (e.g., all_runs.subject+tlrc) or do this from each run separately (e.g., pb04.subject.r01.scale+tlrc)?
If I run it on the concatenated file, do I need to break up the runs for any of the remaining steps? It seems that with the following steps on the website, separating them may not be necessary anymore?
Thank you,
Danny