852 



THE CENTRAL NERVOUS SYSTEM 



ASSOCIATION AREAS 



The brilliant outcome of the researches conducted by the experimental 

 method in enabling us to locate the chief motor and sensory areas of 



Motor leg area 



f*t I* 



4 



foVjS* A 



VKA*tf 



Visuosensory 







Visuopsychic 



Fig. 220. Three sections through different parts of the cerebral cortex. For description see 

 content. (Redrawn from Starling.) 



the cerebral cortex leaves yet uncharted those vast areas lying between 

 them which do not respond in any definite way to artificial stimulation, 

 and the ablation of which results only in more or less indefinite symp- 



