1932] Poliak: Afferent Fiher Systems, Primate Cerebral Cortex 257 



Fig. 52, Experiment II. Lesion reduced to a small injury of the internal 

 geniculate body (C^rm), while the external geniculate body (Cgl) and the thalamus 

 (Th) remain undamaged. In the white substance of the hemisphere three systems 

 of degenerated fibers are visible: somatic sensoi-y radiation (sr) tending toward 

 the superior parietal convolution (PS), showing the mode in which a. part of its 

 fibers form the cingulum; the visual fibers (vr) springing from the damaged 

 internal segment of the external geniculate body (preceding figure), here some- 

 what scattered; and the fiber bundle supplying the cortex around the Sylvian 

 fissure (x, x) which ascends from the ventral portion of the internal capsule 

 (preceding figure). Inferior parietal convolution {PI), superior temporal 

 convolution {Ti). 



