Additionally, there has to be a direct connection from the right occipital lobe to the left temporal lobe, which allows the naming of objects seen in the left visual field and which has to be disrupted in cases of optic aphasia of Freund. This tract is probably found within the forceps on the right side and within the tapetum on the left. I ought to comment on buy GDC-0199 a statement by Schnopfhagen on the straight occipital bundle of Wernicke. Schnopfhagen says (p.102):

”Wernicke describes a “straight occipital tract”, a fibre bundle running from dorsal to inferior, which connects the second temporal gyrus (namely the Pli courbe, the dorsal part that is neighbouring onto the precuneus) with the fusiform gyrus [Spindelwindung]. A drawing of this tract, based on an axial cut through a monkey brain, is available in his book on brain pathologies (Fig. 19 ff). It seems to me beyond doubt

that this “straight occipital bundle” is nothing but a plaited area at the convex lateral surface of the occipital horn. It seems to me rather brave to reach an opinion “beyond doubt” based on schematic drawings of a third person, such as Wernicke’s figure 19, from which a third party gained AZD1208 in vitro its assumptions. The “straight occipital bundle” is a collection of association fibres, which are evident in the monkey brain on horizontal cuts and especially on sagittal cuts where they appear as sagittally cut fibres. A triangular plaited region on axial sections, which is distinguishable from the rest of the fibre mass as a base of a gyrus at the convex lateral surface of the wall of the occipital horn exists neither in the monkey nor in adult human brain. In the human brain, the association fibres of the stratum profundum convexitatis are so prominent that individual fibres from the callosum, the corona radiata or long association fibres running towards L-gulonolactone oxidase inner layers fully disappear within this

system. The following conclusion do actually not belong here but are rather destined for the end of the work dedicated to the entire white matter anatomy of the cerebrum. Meynert’s theory about the development of psychiatric activity is based upon the anatomical assumption that each part of the cortex is in direct anatomical connection to each other, such that between any two random cortical regions association tracts can be carved out (Meynert, p. 138). My research thus far does not support such an assumption as a general rule. The occipital lobe has only one long association tract, namely the stratum sagittale externum that connects to the temporal lobe [inferior longitudinal fasciculus]. Possibly, there might also be some minor connection via the anterior fibres of stratum transversum cunei between the cuneus and the posterior part of the parietal lobe.