302 RESEARCHES ON CORTICAL LOCALISATION AND 



" The central territories are terminal territories ; they are essen- 

 tialty characteristic of the human brain. Isolated destruction of 

 these is never accompanied by phenomena pointing to disturbance 





actory and 

 gustatory projection 

 centre 



Co -7 



en 're of association 



Parietal and temporal 

 centres of association 



A. 



Insular centre 

 of association 



'Auditory 



projection 



centre 



FIG. 2 (after Flechslg). In these diagrams the "centres of projection" and 

 "centres of association" are mapped out according to Flechsig. The small dots 

 are placed in the chief focus of each centre of projection. Around these chief foci 

 are the regions to which a smaller number of fibres of projection pass ; these are 

 indicated by larger dots. These figures, which represent the different cortical 

 spheres indicated by Flechsig as the result of his embryological studies, should be 

 compared with Figs. 3 and 4, and 5 and 6, which illustrate the various areas into 

 which the adult cerebral cortex has been subdivided by Campbell and Bfodmaim 

 respectively. 



of motion or sensation. Motor phenomena, which occasionally 

 accompany lesions of these territories, must be interpreted as actions 

 a distance. 



" The central territories of the zones of association are in more 



