Answer:
Doublethink
Step-by-step explanation:
The process that is being described is known as Doublethink. As mentioned in the question this term refers to a process of indoctrination where the subject is expected to accept as true to simultaneously mutually contradictory beliefs as being correct, usually going against that individual's memories or sense of reality. In trauma cases such as abused children, or political prisoners it is used as a coping mechanism in order to survive.