You can find the aparc+aseg mapped from T1 space to DWI space in the dlabel/diff directory. You can overlay it on the paths reconstructed from tracula to see which aparc+aseg labels the paths overlap with. The identities of the labels in the aparc+aseg are in $FREESURFER_HOME/FreeSurferColorLUT.txt.

On Mon, 10 Jun 2013, stdp82@virgilio.it wrote:

Hi list, Thiebaut de Schotten et al., in an article on cortex ("Monkey to human comparative anatomy of the frontal lobe association tracts" reported that

"The superior longitudinal fasciculus has three distinct branches (Petrides and Pandya, 1984).  In humans, the first branch of the superior longitudinal fasciculus (SLF I) connects to the superior parietal lobule and precuneus (BA 5 and 7), to the superior frontal (BA 8, 9, 32) and perhaps to some anterior cingulate areas (BA 24). The second branch (SLF II) originatesin the anterior intraparietal sulcus and the angular gyrus (BA 39 and 40) and terminates in the posterior regions of the superior and middle frontal gyrus (BA 6, 8, 9). The third branch (SLF III) connects the intraparietal sulcus and inferior parietal lobule to the inferior frontal gyrus (BA 44, 45, 47)"

By TRACULA output we have 2 output SLFp and SLFt.

Having also cortical results, I wonder if possible to know which are the seed and target areas of SLF p and SLFt or al least to know which is that branch that is described by SLFp output.

Thanks,

Stefano