Alter Ego of World Champion: “When I’m fighting, I’m totally someone else”

“We all have our alter ego…I don’t like fights; I don’t like arguing,” she said. But when I’m in the gym, or when I’m training, when I’m fighting, I’m totally someone else.”

https://www.nytimes.com/2023/02/03/sports/amanda-serrano-erika-cruz-preview.html

Comment: There may not be any practical difference between that kind of "alter ego" and the alternate personality of multiple personality trait.

Added 10:15 a.m.: It would be interesting to know where her detailed memories of fights are stored: equally in the memory bank of her regular ego and of her alter ego, or mainly in the memory bank of her alter ego.