a type of amnesia in which only certain subjectively unpleasant events and facts that are psychologically unacceptable to the person “fall out” of memory. Hysterical amnesia differs from affectogenic amnesia (see Affectogenic (catathymic) amnesia in Chapter 2.1: Key Psychological Concepts in Clinical Psychology) in that memories of the environment and indifferent events that coincide with those amnesiated in time are preserved.