Hi - this is the first number in the .msf files - that should make
your task easy. Note though that if the nonlinear reg has worked OK,
along with the rest of TBSS, a group difference in the amount of
warping should not have had any effect on the validity/
interpretability of the final (skelton-projected) TBSS results.
If you want to get more 'under-the-skin' than the TBSS documentation,
I suggest that you have a detailed look at the TBSS scripts (which are
all very simple) and each stage of the outputs.
Cheers.
On 12 Jun 2008, at 05:21, David Lahna wrote:
> Hey all,
>
> I've run through the full TBSS analysis stream for a group analysis
> and have
> found some unexpected results. In light of this, I was wondering if
> there is
> a way to quantify and look at the amount of warping that occurred
> during
> registration to see if this varied between groups. Something like the
> distance maps mentioned in the technical report and a way to
> succinctly
> summarize them would be nice. Where can I find this information?
>
> Also is there documentation somewhere about problems to look out for
> with
> TBSS or different ways to troubleshoot/quantify the analysis.
> Basically I
> want to get to know this data and the results on a more detailed
> level then
> the simple walkthrough (http://www.fmrib.ox.ac.uk/fsl/tbss/
> index.html) allows.
>
> I'm new to this, hope I managed to phrase this well and thanks in
> advance
> for any help provided.
>
> David Lahna
>
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