The nursing student is learning about depersonalization disorder. Which student statement indicates that learning has occurred? 1. “Depersonalization disorder has an alteration in the perception of the external environment.” 2. “The symptoms of depersonalization are rare, and few adults experience transient episodes.” 3. “Depersonalization disorder is characterized by temporary change in the quality of self-awareness.” 4. “The alterations in perceptions are experienced as relaxing and are rarely accompanied by other symptoms.”