Complex sentence: Derealization is a subjective experience of unreality of the outside world, while depersonalization is sense of unreality in one's personal self, although most authors currently regard derealization (surroundings) and depersonalization (self) as independent constructs.
Split into simpler sentences: Derealization is a subjective experience of unreality of the outside world, while depersonalization is sense of unreality in one's personal self. Although most authors currently regard derealization (surroundings) and depersonalization (self) as independent constructs.