afni.nimh.nih.gov

> What's the conventional wisdom on the order in which normalization (e.g., to TT_N27)
> and smoothing should be done?

Typically normalizing precedes smoothing.

> It seems that normalizing first means that each brain will effectively be subjected to a
> different size smoothing kernel.

You may use 3dBlurToFWHM to achieve a uniform smoothing in the standard space.

Gang