When you remember how wonderful your mother was but forget how often she made you feel inadequate, then you are exhibiting the perception concept called?

I believe the answer is: selective retention

Selective retention refers to human tendencies to cherry pick the type of memory only to the things that suitable to our interest and values. People on average do selective retention as a coping mechanism to get rid of negative memories that cause a certain level of distress to our psyche.

im sorry i wish i can but try google