Is it ensure, insure, or assure?
depersonalization de·per·son·al·i·za·tion (dē-pûr'sə-nə-lĭ-zā'shən)
A state in which the normal sense of personal identity and reality is lost, characterized by feelings that one's actions and speech cannot be controlled.
in psychology, a state in which an individual feels that either he himself or the outside world is unreal. In addition to a sense of unreality, depersonalization may involve the feeling that one's mind is dissociated from one's body; that the body extremities have changed in relative size; that one sees oneself from a distance; or that one has become a machine.