Dear sg,
> Thanks for the clarification. I want to try using an explicit mask, but I can
> seem to be able to invoke that operation. All I ever get is the option for an
> absolute vs. proportional threshold. I can see the code in the spm_spm_ui.m
> file, but I can't figure out how to get to the masking menus.
Yes, I remember taking a little while to work that out myself. In fact
I think you need the "Full Monty" option in the drop down menu you get after
pressing the PET / SPECT models button. You will get a whole series of
expanded options including explicit masking.
Best,
Matthew
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