afni.nimh.nih.gov

Note that 3dClustSim does not care anything about
the space of the data.

Coordinates from 3dclust are in the space of the
dataset unless the program is told to transform
them, such as via -mni.

That is an old option, and terminology has evolved
a bit. The "+tlrc coordinates" in the help might
read "+tlrc view" now. But only recently have
datasets even started to store the actual space.

I will make a small change there. You are the
second person to ask about it recently.

- rick