The author informs us that the most common cause of multiple personality ....... .

Multiple personality is an extremely rare mental disorder in which two or more independent and
distinct personalities develop in the same individual. Each personality may alternately inhabit the
person's conscious awareness to the exclusion of the other personalities. Personalities usually vary
remarkably from one another in outlook, temperament, handwriting and body gestures. Often each
personality gives itself a different name. Only a few hundred true cases have been reported worldwide.
The condition usually develops as a way of coping with painful and disturbing experiences
faced early in life such as child abuse. Treatment is aimed at integrating personalities back into a
single, unified personality by bringing trauma to conscious awareness and defusing it.