1932] Poliak: Afferent Fiber Systems, Primate Cerebral Cortex 253 



Fig. 48, Experiment II. Lesion (L) attains both the globus paUidus and the 

 internal capsule. At the latter place, beloAV the lesion, descending fibers ; above it 

 the thalamo-cortical radiation (sr) mainly tending toward the central sulcus (C) 

 although both precentral (CA) and the postcentral gyri (CP) receive a considerable 

 number of afferent fibers. Few of these reach the inferior parietal convolution 

 (PI). Auditor}' radiation («r) containing more fibers although not yet fully 

 developed. It enters the upper lip of the superior temporal convolution (T,) 

 none of its fibers reaching any other portion of the temporal cortex. The position 

 of the auditoiy fascicles within the sagittal fiber layer of the temporal lobe is 

 well demonstrated. Many fibers degenerated in the thalamus (Th) , the ascending 

 belonging to lower afferent somatic sensory tracts. Syhnan fossa (FS), optic 

 tract (//). 



