Hi,
You can certainly run any contrasts between these groups with FEAT,
but I'm still not sure in what way it makes sense here to use the
controls, given that you didn't also give them the treatment. You can
run the following contrasts that make some sense:
controls-patientsPRE (unpaired t-test model)
controls-patientsPOST (unpaired t-test model)
patientsPOST-PRE (paired t-test)
See the FEAT manual for example models.
Hopefully this will give you the results you need?
Cheers.
On 10 Mar 2009, at 08:30, Rebecca Leigh wrote:
> Hi Steve,
> sorry I should have been clearer about my groups.
>
> My controls are healthy volunteers, my training group consist of
> patients.
> I therefore want to examine how patients differ to healthy controls
> prior to
> training and how they differ after training.
> Do my FEAT analysis seem reasonable if this is what I want to examine?
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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