Hi Janosch - Each tract has been labeled manually in a set of training subjects. Based on these manually labeled tracts and the aparc+aseg of the same training subjects, TRACULA computes the probability of a tract going through each aparc+aseg label, or next to each aparc+aseg label in the L, R, A, P, I, and S direction, at each point along the trajectory of the tract. So nobody tells it what labels to use for which tract, it learns it automatically from the training data.
Hope this helps, a.y On Thu, 5 Mar 2015, Janosch Linkersdörfer wrote:
Hi Anastasia and others, I am sorry if I just did a bad job, but I could not find information on how information from the cortical parcellation is used in the path tracking done by TRACULA, especially, which cortical labels are used as determinants (seed, waypoint) for which tracts. It would be great if you could point me in the right direction! Thanks a lot, Janosch
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