Hello SPMers,
I'm performing multiple regression on VBM data in SPM5. There appear to be
two places where I can add covariates to my model. One under the 'multiple
regression' subheading, and one later on in the design specification. The
help with SPM5 suggests that there isn't any difference between these two
covariate options...but my parsimonious brain believes that if this were
true there would only be one option.
Does anyone know the difference between the models that result from adding
covariates each way?
Thanks,
Matt
Matt Shane
Post-doctoral Fellow
Olin Neuropsychiatric Research Center
Hartford, CT
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