[smugglerFlynn]

In psychology, different mental models exist that help to arrange your knowledge about yourself in a meaningful way. You may be interested in reading about Internal Family Systems[1], inner child therapy[2] and subpersonality[3] concept in general. These mental models are widely used in modern therapy.

At least some of these models are grounded in the way your brain is structured (e.g. limbic system vs prefrontal cortex), and research into the way child’s brain develops over the years. Others provide handy frameworks to structure therapy sessions. What you choose to do with that knowledge (e.g. disowning your actions, or becoming more responsible for them) seems to be of little relevance to the models themselves.

1 - https://en.wikipedia.org/wiki/Internal_Family_Systems_Model 2 - https://en.wikipedia.org/wiki/Inner_child 2 - https://en.wikipedia.org/wiki/Subpersonality