Hi,
My paradigm is this:
30s rest, 30s task1 (TR=2.5s), 12s rest, 30s task2(TR=2.5s),30s rest......
Now, in my proc.py, I am modeling it in 2 ways:
1. Provide stim files for task1 and task2 and using BLOCK(30,1) only
2. Provide stim files for task1, 12s rest (naming junk), task2 and using
regress_basis_multi option with
BLOCK(30,1), BLOCK(12,1), BLOCK(30,1) options
Which one seems right? To me, 2nd one make more sense as 12s rest between taks doesn't seem enough and if I don't model it, it will be part of baseline signal (I suppose).
Similarly, I carried the model to my PSC calculation.
There I have 3 TENT functions
TENT(-10,30,17), TENT(-4,12,7), TENT(-10,30,17)
But now my iresp file is giving some crazy numbers (like 30000, even though I am using scale option in AFNI)..
What seems to be the problem. Any help would be appreciated.
Thanks
Priyank