Cortex 



of left 



cerebrum 



an CO association 



./. ,/ Ig^ A^ :§ axea 



l3 Fmger^ co 



Speech A ^"^^ Speech t\ 

 OHacto.y.r^ %^ ^ V 



Froatal 

 associ- 

 ation 

 area 



'^ 



w 

 O 



Medulla 

 oblongata 



LOCALIZATION OF FUNCTIONS IN THE CEREBRUM 



Certain regions of the brain cortex seem to be related to receiving sensation from 

 specific regions of the body, while other regions of the brain initiate movements of 

 particular muscles. "Thinking" appears to be carried on by the association areas: 

 the hind area has to do with knowing and understanding concrete facts and rela- 

 tions; the frontal area has to do with abstract thinking, self-control, concentration, 

 and making decisions 



