The process where people are motivated to confirm and maintain their existing self-concept is known as: self-efficacy. self-esteem. self-verification. self-enhancement. self-centering.
It is known as self verification as this behavior tries to do things in a way that they could be understood and to be known mainly because of the feelings or beliefs they have or acquired. It could be describe above as it has the motivation of confirming existing self concept in which they try to prove and to confirm something they believe.