1932] Poliak: Afferent Fiber Systems, Primate Cerebral Cortex 233 



Fig. 28, Experiment I. Somatic sensory radiation (sr) containing a greater 

 number of fibers than in the preceding figures. It enters both precentral (CA) 

 and postcentral convolution (6"P) many fibers penetrating into the cortex forming 

 the floor of the sulcus centralis (C). The anterior end of the lesion (L) in the 

 thalamus (Th) appears. The auditory radiation (ar) here also contains more 

 fibers and enters the upper lip of the superior temporal convolution (T,) which 

 forms the lower wall of the Sylvian fossa (FS). In the external capsule the 

 small degenerated bundle above the auditory radiation belongs to the anterior 

 commissure. 



