Moral insanity

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It has been suggested that this article or section be merged into Antisocial personality disorder. (Discuss)

The concept of "moral insanity" as a medical disorder was first described by the English physician J. C. Prichard in 1835 in his Treatise on insanity and other disorders affecting the mind as a form of mental derangement in which the intellectual faculties are unaffected, but the moral principles of the mind were "depraved or perverted, the power of self-government is lost or greatly impaired, and the individual is ... incapable ... of conducting himself with decency and propriety in the business of life."

The term is now obsolete, but is now considered to describe what is now called antisocial personality disorder.^{[citation needed]}