576 BRAIN MECHANISMS AND LEARNING 



lobes is to emphasize two facts (i) none of our present notions of frontal lobe 

 function has been demonstrated to apply to man m spite of many attempts to do 

 so, and (2) the caution that one should use in generalizing about brain function 

 without reference to all available evidence, including that obtamed in man. 



Hebb. But let us keep the record clear: the effects of lobotomy are different from 

 those of lobectomy m man. 



