Hi,
I'm actually trying run this sort of analysis right now with PET data as well. What is the best way to estimate the smoothness for this kind of dataset? I tried running 3dFWHM on the group analysis data but I got values of about 5.5 which is much lower than the smoothing kernel I applied to the data.
Given that I don't have time series data, I can't use Deconvolve to compute err_ts; is there a workaround you can recommend?
Thanks,
Jatin