Hi - i suggest that you look at the unthresholded fixedz in fslview to see
the range of values it contains, compared with the z threshold you are
inputting to easythresh. Looking at the z histogram is useful here.
Cheers.
On Mon, 5 Jul 2004, T Meindl wrote:
> Hi Stephen,
> thank you very much for your help.
> I registered the 5 runs to each other using featregapply and produced with
> avwmerge and avwmaths a VARCOPE, a COPE and a FIXEDZ-file afterwards.
> Now I got stuck with easytresh. I used FIXEDZ as <raw_zstat>, mask from
> reg_standard as <brain_mask> and as background image a whole-brain MPRAGE.
> This results in a completely yellow brain.
> Do you have any advice for this?
> Looking forward hearing from you,
> Thomas
>
Stephen M. Smith DPhil
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe 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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