Hi - this option is the probabilistic version of an FA constraint. It will stop tracts with some probability that is dependent on the partial volume fraction of the fibre direction that has been selected at the last step.
Saad.
On 5 Apr 2011, at 15:57, Romain Quentin wrote:
> Hello,
> I want to constrain the FA when i launch probtrack at 0.15.
> I do not know what value is using the option "use anisotropy to constrain tracking"?
> Does anyone know how this option works?
> Thanks
>
--
Saad Jbabdi
University of Oxford, FMRIB Centre
JR Hospital, Headington, OX3 9DU, UK
(+44)1865-222466 (fax 717)
www.fmrib.ox.ac.uk/~saad
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