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. Author manuscript; available in PMC: 2021 Jun 1.
Published in final edited form as: Brain Imaging Behav. 2020 Jun;14(3):696–714. doi: 10.1007/s11682-018-0006-y

Fig. 7.

Fig. 7

a Illustrative representation of the interference of superior longitudinal fascicle II (SLFII) (green) and SLFIII (purple) with the hand-related motor fiber tracts (HMFTs). This is an anterior view of an average case of a delineated HMFT (light yellow). SLFII and SLFIII appear to pass through the region of the corticospinal tract (CST) and, in particular, through the hand motor area. There are many “openings” within the HMFTs due to the passage of crossing fibers, which possibly affect the density of the delineated tract using diffusion magnetic resonance imaging (dMRI) tractography.

b Depiction of the SLFI (gray) on the left and the arcuate fascicle (AF) (blue) on the right. AF seems to interfere with the HMFTs laterally, whereas SLFI appears to interfere medially. The right and left sides are marked as R and L, respectively, in all figures.