Recalling a report of Winkelman's that a number of patients on chlorpromazine experienced increased frequency and intensity of dreaming, Watterson became interested in a patient receiving chlorpromazine who had feelings of estrangement, disorientation in space, continuous dreaming, and haunting visual imagery as prominent symptoms of a borderline psychotic process originally precipitated by an operation on the hip. The symptoms continued for two and a half months but began to abate when the patient was admitted to a state hospital and the medication stopped. The chlorpromazine seems to have sustained the symptoms