Hi Paul,
you can either run separately L1, L2 and L3 or
consider L1 and the mean of L2 and L3. Then, all you
need to do is to create a separate directory for each
type of image (so, say, Lparralel and Lperpendicular)
and make sure that the images in their corresponding
directory are named *exactly* the same as the original
FA images are (please see the manual:
http://www.fmrib.ox.ac.uk/fsl/tbss/index.html, section
"Using non-FA Images in TBSS").
Hope this helps,
Gwenaelle
--- Paul Geha <[log in to unmask]> a écrit :
> Dear FSL users,
>
>
> I ran a TBSS t-test between 2 groups and found a
> significant FA difference
> between them. I would like to see where does it
> come from L1 or L2+L3/2?
> How do I do that? L1, L2, and L3 do I have to
> repeat Tbss for each alone
> i.e L1 and L2 and L3??
> thanks
>
> Paul Geha M.D.
> Northwestern University
> The Feinberg School of Medicine
> Department of Physiology M211
> 303 E. Chicago Ave.
> Chicago, IL 60611
> Tel:312-503 2886
> Fax: 312-503-5101
>
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