In addition to Cyril her advice you might find this email form
Christian Gaser helpful:
and especially the paper from Stonnington et al (2008).
Dr. A.A.T.Simone Reinders, MSc PhD
King's College London
Institute of Psychiatry (IoP)
Box P063, De Crespigny Park
London SE5 8AF
On Thu, Apr 24, 2008 at 2:17 PM, cyril pernet <[log in to unmask]> wrote:
> Hi Maroa
> > Dear SPM users,
> > I would like to know if it's possible to do VBM analysis with:
> > - images tha have been acquired in the same machine but with different
> > -images that have been acquired with the same orientatio but with
> > machines.
> A priori this is fine because all your images, prior to statistical
> analysis, are in the same space with the same resolution.
> However, you have to be careful and test 1. for differences between group
> in the segmentation etc .. and 2. include these factors in the statistical
> analysis. For instance I tried this with data from 2 scanners and the
> regressor that modeled the 2 scanners explained a lot on the edges. In your
> case you would have 2 maybe 3 regressors: one for the scanners, one for the
> orientations and one for the interaction (not sure for this one though).
> Hope this helps
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