I am a bit confused about the intent of this program. Can this be used to estimate what you should set your FWHM to be while you are doing your subject level preprocessing or is it mostly just something that 3dClustSim does automatically. And in 3dClustSim should you be putting the FWHM you actually used to filter the datasets or the FWHM that 3dFWHMx suggests?
Thanks,
Amanda