Hello,

I have two scenarios that I'm working with:

1) Within the same day, subjects had two different scans - one scan was moving their lefthand and one hand was moving their righthand.

for this scenario I would like a Left-Right contrast; however, I'm not sure how to do this when I'm analyzing the two separately. Using afni_proc.py I do see that I can enter multiple 'runs' but it appears that it just 3dcats the runs into into one big run and my stimfile has to reflect. I posted before and it it seemed that this is not okay to do unless preprocessing has occurred first. Should I preprocess both separately and then run 3ddconvolve on the 3dcat file? Can I just use 3dcalc to subtract the the two stats files?

2) Subject have a scan pre intervention and then again do a post scan 5 weeks later.

For this I would like to do a post-pre contrast. Should I follow a similar pipeline as I described above?

Thanks



Edited 1 time(s). Last edit at 04/05/2019 11:43AM by Dxc536.