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[[Erotogenic ]] [[masochism ]] is the primary, [[biological]], and constitutional masochism that results from [[libidinal ]] [[excitation]], which provides the [[physiological ]] basis. It is the [[psychic ]] superstructure that supports the [[other ]] forms of masochism, [[feminine ]] and [[moral]], that [[Freud ]] described along with it in "The [[Economic ]] Problem of Masochism" (1924c).

In ''[[Three ]] Essays on the [[Theory ]] of [[Sexuality]]'' (1905d) Freud noted that "it may well be that [[nothing ]] of considerable importance can occur in the organism without contributing some component to the...