afni.nimh.nih.gov

This archive below, from SUMA's documentation page, illustrates what the script @SUMA_Make_Spec_SF expects to find in a caret output. The script has not been updated for a few years and it is possibly out of date. Let me know how it goes. You can also use its output to see how the .param file is used.

[afni.nimh.nih.gov]

cheers,
-z