All writers have mentioned the general defective conception of truth and the relation of right and wrong which appears to be a prominent symptom in all persons who use morphia. It is difficult to understand whether this is a veritable paralysis of the higher reasoning centers or a defect of the senses by which distorted conceptions of facts are not recognized. In all probability both conditions exist, and what is termed moral paralysis is a symptom of some condition of degeneration which is common to these persons in the later stages. This symptom practically describes a defect in the reasoning faculties and inability to recognize the value of truth and honesty, also a disposition to conceal the facts and distort them, no matter what their relation may be.
I shall attempt to group some of these symptoms which may be termed the psychosis of morphinism. The first is a palsy
CROTHERS TD. PSYCHOSIS OF MORPHINISM.. JAMA. 1905;XLV(26):1940–1942. doi:10.1001/jama.1905.52510260026001g
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