Repression vs. Dissociation

So first thing definitions. Repression is the active and defensive coping mechanism usually done unconsciously. While dissociation is automatic, psychologically passive, and an active motivated defense. Repressed materials are usually experienced, digested, subconsciously encoded, and then forgotten. In contrast dissociation occurs when someone cannot integrate and synthesize experience, and dissociated material is organized in such a way one state requires the exclusion of another state or realm of experience. The metaphor of repression would be horizontal splitting while dissociation is vertical splitting. For example if my dad abused me growing up if I repressed the memories I would deny them ever happening while if I dissociated one state might say “my dad was a great man” while another would be constantly reliving the trauma. Now repression and dissociation can occur separately or together

So one awesome thing about dissociative identity disorder is that most alters (except fragments) each alter has its own Id, Ego, and Superego. So as stated before alters have the capacity for repression and the system usually uses dissociation at least in my personal experience with it as a last resort option and repression as first unless it’s a new trauma which it then would just dissociate.