Hi - you should be able to easily work out what's going wrong by
looking at the registration summary page and looking to see how all
the individual subjects' registrations have worked.
Cheers.
On 31 Oct 2008, at 13:57, Dana Eldreth wrote:
> Dear FSL users:
>
> I am a first time user of FSL and I am trying to do a very simple
> single
> group analysis with an N = 5. I preprocessed the data and did a
> first level
> analysis which created the feat directory. The feat report at the
> individual level looked normal. Then I put these feat directories
> into a
> higher level "fixed effects" analysis using the "model setup wizard"
> and I
> simply selected "single group average" and kept the default settings.
>
> For some reason the "Sum of all input masks after transformation to
> standard
> space" looks really odd. However, the log and the data output look
> pretty
> normal.
>
> I've attached a copy of one of the brains from the registration
> output If
> someone could please take a look at this and perhaps shed some light
> on what
> may have gone wrong that would be fantastic.
>
> Thank you,
> Dana
>
> <sum_output.JPG>
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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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