Left Hemispheric White Matter Dissection. The white matter dissection has preserved cortical markers for reference. The superior, middle, and inferior frontal gyri are highlighted. The pre- and post-central gyrus are visible within the frontal and parietal lobes, respectively.  The insular cortices, forming the medial wall of the lateral fissure of Sylvius, have been removed to expose the extreme capsule and claustrum.  The uncinate fasciculus connects the anterior temporal lobe and inferior frontal gyrus. (Image courtesy of M Nunez)