Hi, all. I've read Jill O'Reilly's page on PPI analysis
(http://www.fmrib.ox.ac.uk/Members/joreilly/how-to-run-a-ppi-analysis-in-feat/).
She shows one screenshot of a window titled "General Linear Model" in which
there is an EV tab and a tab for Contrasts & F tests. My question concerns
the EV tab shown in which "interaction" is an available option in the "basic
shape" menu. I'm running FSL 4.1.2 (linux version) and I don't have this
option on my EV tab, nor do I have the options shown in that screenshot for
the "orthogonalize" button. I've looked in both FEAT gui and the GLM gui
utility. Does this tab really exist?
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