The correct answer is painful experiences.
Repression is one of the main foundatins on which psychoanalysis is based. Sigmund Freud was the first person to recognise the meaning of repressed memories. Whenever a shocking event occurs, the mind pushes into some inacessible spot of the unconcious.
Typically, repressed memories are associated to painful experiences such as sexual, mental or physical abuse.
Professoinal help is needed in order to reduce the impacts through an individual's life.
I believe the answer is: Regression
Regression refers to the process of slipping to our earlier stage of development when facing difficult situation rather than making an adaptation to face it.
This coping mechanism would make the person who do it act in non-suitable manner considering their age. Other example would be college students who throw temper tantrum like children when facing things that they considered as offensive.
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