GENERAL CONCLUSIONS 



Every case was schizophrenia or had schizophrenic features. 



The two cases of simple schizophrenia, that is, in which the 

 patients introverted without projecting their impulses, were both 

 submyxedema. 



The two cases with features of circular insanity were both 

 hypoadrenia. 



The hyperthyroids as a whole seemed to be more extroverted 

 and to keep in closer contact with reality than the other types. 



The feeding of desiccated thyroid gland seemed to reduce 

 introversion and to cause the patient to come into closer contact 

 with the environment. 



Most of these patients showed or gave indications of the 

 struggle with perverse impulses of the creative instinct, that is, 

 the sexual conflict which the Freudian school believes to be the 

 cause of psychogenic disorders. 



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