""'Rat Man "'" was the nickname given by Sigmund Freud to a patient whose " case history " was published as " Bemerkungen �ber einen Fall von Zwangsneurose " ['Notes Upon A Case of Obsessional Neurosis'] ( 1909 ).
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On the basis of his early clinical work, Freud had postulated that unconscious memories of sexual molestation in early childhood were a necessary precondition for the psychoneuroses ( hysteria and obsessional neurosis ), a formulation now known as Freud's seduction theory.
