Hi Roger,
I think you just need to be aware of this issue when you interpret your results. Especially if you are doing TBSS, I wouldn't expect large clusters of FA>1 appearing consistently within the main body of tracts. You see most of these voxels consistently at the periphery of the brain.
Cheers,
Stam
On 21 Jan 2011, at 01:44, Roger Jou wrote:
> Hi Stam,
>
> Thanks for the quick reply. That is very helpful. Is there a reference explaining this that I could use to satisfy skeptical manuscript reviewers?
>
> Thanks again,
>
> Roger
>
>
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