Dissociative identity disorder – which many people recognize by its former name, multiple personality disorder – is one of Hollywood’s favorite psychology-related topics, with a decades-long history of movie and TV portrayals, most recently in this spring’s “Moon Knight.” But in real life, DID does not look like it does on the screen. Bethany Brand, PhD, of Towson University, discusses why it is more subtle than TV and movie portrayals would lead viewers to believe, what is happening in the brains of patients who experience it and what treatments are available.