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June 8, 1901


JAMA. 1901;XXXVI(23):1627. doi:10.1001/jama.1901.02470230029003

Cases of so-called double consciousness or multiple personality are rather numerous in medical and psychologic literature and are generally of a common type— the individual possesses or is subject to two conditions of consciousness, in either or both of which he or she is unconscious or amnesic of his doings in the other. Such conditions are not at all infrequent in epileptics and often afford opportunities for interesting studies and speculations. It is not often, however, that we have a well reported observation of multiple personalties, coexisting as it were simultaneously in the subject from their first appearance to their final exit from the scene. What appears to be such a case forms the subject of a recent article by Dr. Morton Prince,1 whose reputation as a physician and neurologist gives it the credibility that might otherwise be questioned.

The subject was a neurasthenic young woman, in whom a