Neopallium and Intelligence 167 



sensori-motor cortical centres of speech. At 

 the same time an individual suffering from this 

 disease unconsciously drops syllables in the 

 attempt to form spoken sentences or in writing. 

 In like manner, when trying to think he finds 

 that his memory for certain words is defective, 

 so that even in the early stages of general 

 paralysis a person may be incapable of manag- 

 ing his own affairs. We thus have proof that 

 there is a corresponding loss of the individual's 

 intellectual powers in persons born with a de- 

 fectively developed neopallium, or in those 

 whose nerve cells and fibres, of this part of the 

 brain, degenerate. 1 



If we turn to the other side of the picture 

 we find that the intellectual capacity of a 

 healthy child is in proportion to the perfection 

 of the structural development of the nerve cells 

 and fibres of his cerebral cortex. 



Those of us who, as medical practitioners, 

 have had an opportunity of watching the move- 

 ments of a new-born infant, can have arrived at 

 no other conclusion than that a child imme- 

 diately after birth possesses inherited instinc- 



1 The Brain in Health and Disease, by Dr. J. Shaw Bolton, 

 P- 375- 



