54 



STUDIES ON THE CENTEAL NERVOUS SYSTEM 



In rabbits it is insignificant and in lower animals like the 

 hedge-hog, it cannot be recognised as such. 



In the parietal field the conditions are similar. The 

 ventral part, the regio supramarginalis and the regie angu- 



MONKEY 



Fig. 15. Extension of the Cortical Areas in Mammals 

 See figure 14 for the names of the various areas. (After Brodmann) 



laris, is much more changed than the remaining portion of 

 the parietal lobe. Both these latter fields are only in the 

 case of man clearly distinguishable as special fields. 



