<prompt> Which of the following is true regarding depersonalization?More common after life threatening traumaSeen in seizure and migraine patientsMore common in females.Mean age of onset about 25 years old.  <response>: Ans. a More common after life threatening traumaRef: Kaplan Lecture Notes 2017; Page No-50 Depersonalization: Persistent or recurrent feeling of being detached from ones mental processes or ones body, thoughts, feelings, or actions, accompanied by intact sense of reality. Derealization: Experiences of unreality or detachment from ones surroundings. The symptoms cause significant distress or social occupational impairment. Gender ratio that is Male : Female- 1:1 Predisposing factors: Severe stress or trauma Mean age of onset: 16 years. Prevalence rate 2. Not accounted for by a substance e.g., drug of abuse, medication, another medical condition, or another mental disorder. T Incidence of comorbid anxiety disorders and major depression. Treatment: Psychotherapy directed at decreasing anxiety, CBT, hypnotherapy, and supportive therapies may be helpful. Differential Diagnosis: Perceptual disorder, panic disorder, and PTSD. 