Une small addition:
If I need to try modulation 1-2-3-4-5 and see the regressor effect
with contrast [0 1],
can I just run contrast [0 -1] to save another GLM with modulation 5-4-3-2-1 ?
2009/1/28 Dorian P <[log in to unmask]>:
> Hello to everybody,
> I have a simple question. I need to run around 5 GLMs for each subject
> (N = 19) with different parametric modulation values for different
> My question is: Is there a way to save time by using some calculations
> previously done for the subject?
> I don't know the steps of a GLM, but thinking of SPM, it first
> establishes the number of resels and then runs the analysis, and
> thinking that the volumes to analyze are the same for each subject,
> and though number of resels should be the same... can this be useful
> to the next GLM? Any clue how to save time?
> Ruhr University Bochum
> Novobrain PhD Student