[Camino-users] conmat non-stop intermediate regions

[Philip A Cook]

Hi,

I might be able to add this capability in a future release.

One option would be to simply ignore intermediate connections and count the furthest labeled region encountered in each direction from the seed point. This would retain the rule that each streamline counts only once. You would need to have a strategy to stop the tracking so that false-positive connections were not generated by streamlines that go awry after entering a labeled region (which typically have low anisotropy).

Another option would be to count everything - but this could get complicated because one streamline could be counted many times. 



On Jun 19, 2014, at 1:30 PM, Rafa X <rromero3000 at gmail.com> wrote:

> Hi Camino users and developers,
> I'm creating a connectivity matrix from my tracts computed using bayesdiract probabilistic tractography but I can see an important lack of inter hemispheric connections. I think that it is because the conmat consider streamlines between regions only if there is not a third region between them. I think this condition could be a problem specially in interhemispheric connectivity because it only will take into account those interhemisferic streamlines that cross the corpus callosum without contact any other region (which it is quite easy).  So, my questión is: Is there someway to compute the number of streamlines between each pair of region of the atlas including those streamlines that go throughout other regions?
> Thank you all in advance
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