Sorry: and an additional question: why should one regress both, local and average WM? I thought that the local WM is a more accurate way of WM regression, making the global WM regression unneccessary.
In the technical note for ANATICOR: [
afni.nimh.nih.gov]
It says:
So, the latest model we use is:
Y = [ MO + RI + WMeLOCAL + LVe ] X + Residual
I do not have physiology measures, so the RI regression is not possible for me. Is that a reason to include both, WMeLOCAL + WMe? I don't understand the benefit of WMe in addition.
Best,
Janina
