Hi David,
as indicated in the fslmaths command example, you
should use your p-values corrected for multiple
comparisons with the tfce, so something like
***_max_tfce_tstat*.nii.gz and threshold this image to
get the significant results, so -thr 0.95.
Cheers,
Gwenaelle
--- David Kideckel <[log in to unmask]> a écrit
:
> Hi Gwen,
> Based on what you have said then, what image/s am I
> creating a mask from?
>
> David
>
> On Wed, Mar 5, 2008 at 7:33 AM, Gwenaëlle DOUAUD
> <[log in to unmask]>
> wrote:
>
> > Hi David,
> >
> > I think what Steve means is something like:
> > fslmaths your_tfce_max_tstatX_results -thr 0.95
> -bin
> > your_results_mask
> > then
> > fslmeants -i all_FA_skeletonised -m
> your_results_mask
> > -o mean_FA_results.txt
> >
> > Cheers,
> > Gwen
> >
> >
> > --- David Kideckel <[log in to unmask]> a
> écrit
> > :
> >
> > > Hi. Which cluster image should I use as the mask
> > > input to fslmeants? And
> > > what exactly do you mean by "also feed in
> > > all_FA_skeletonised"?
> > > Thank you.
> > > David
> > >
> > > On Wed, Mar 5, 2008 at 4:15 AM, Steve Smith
> > > <[log in to unmask]> wrote:
> > >
> > > > Hi, this is indeed a sensible number to
> report. If
> > > you use a given
> > > > cluster image as the mask input to fslmeants,
> and
> > > also feed in
> > > > all_FA_skeletonised, you can get the single
> > > cross-subject 'timeseries'
> > > > of mean FA over that mask - that should give
> you
> > > the numbers that you
> > > > want to report (including cross-subject error
> > > bars).
> > > >
> > > > Cheers.
> > > >
> > > >
> > > > On 4 Mar 2008, at 15:48, David Kideckel wrote:
> > > >
> > > > > Dear FSL Experts,
> > > > >
> > > > > I am almost finished running a TFCE and
> > > Randomise analysis for TBSS.
> > > > > Once this is done, what is the best way to
> > > prepare the data for a
> > > > > presentation. All I want to do is
> essentially
> > > state what the FA
> > > > > values were for each group (there are 3 of
> them)
> > > in areas of
> > > > > significant difference.
> > > > >
> > > > > Thank you.
> > > > >
> > > > > David Kideckel, PhD Candidate
> > > >
> > > >
> > > >
> > > >
> > >
> >
> >
>
---------------------------------------------------------------------------
> > > > 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
> <http://www.fmrib.ox.ac.uk/%7Esteve><
> > http://www.fmrib.ox.ac.uk/%7Esteve>
> > > >
> > > >
> > >
> >
> >
>
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> > > >
> > >
> >
> >
> >
> >
> >
>
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