The "'dorsal longitudinal fasciculus "'( DLF ) ( not to be confused with the medial longitudinal fasciculus, nor the superior longitudinal fasciculus ) is a white matter fiber tract located within the brain stem, specifically in the dorsal brainstem tegmentum.
22.
An additional feature was studied in a group of FtM transsexuals who had not yet received cross-sex hormones : fractional anisotropy values for white matter in the medial and posterior parts of the right superior longitudinal fasciculus ( SLF ), the forceps minor, and the corticospinal tract.
23.
However the brainstem reticular formation centers that control vertical eye position ( the interstitial nucleus of Cajal; INC ) and saccade velocity ( the rostral interstitial nucleus of the medial longitudinal fasciculus; riMLF ) are equally involved in torsional control, each being divided into populations of neurons that control directions similar to those of the vertical and torsional pulling eye muscles.