My view of it, for my own personal reflection, is to first define identity. I opt to have two prongs to it, rooted in game theory: executive identity & motivational identity. Given a decision matrix executive identity is the actor being able to choose. Motivational identity is what determines the pay off values of the outcomes
It's possible to have conflicting motivation, which ends up debating itself until it's decided by your executive identity. In various contexts these motivations will overtake each other on executive identity, causing one to behave rather differently
There's a range on how cohesive these behave for people, for some it can be distinct enough to feel like a different person