yes, I think you are; the question is just asking how to restrict the
voxels that FLAME runs on, instead of the default (of all voxels which are
present in all subjects); ie how to setup a ROI analysis pre-stats.
:)
On Mon, 24 Mar 2003, Joe Devlin wrote:
> > Then go into there and I _THINK_ that if you edit the mask volume in there
> > then that will affect everything else in a higher-level analysis.
>
> This does raise the question as to why you would want to include voxels
> without any values in your analysis though? If a voxel has a zero value
> in one (or more) subjects and this is analysed along with voxels
> containing measurements from the rest of the subjects, it wouldn't seem to
> yield a meaningful result. Mostly it seems to tell you that some
> pre-processing step along the line didn't work so well and things aren't
> sufficiently aligned (at that voxel at least).
>
> Perhaps I misunderstood the question?
> Cheers,
> Joe
>
Stephen M. Smith MA DPhil CEng MIEE
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
|