ONE important thing to remember that I learned, and have never forgotten is that these two effects CANNOT exist without anxiety
.....but that anxiety
can exist without these sensations.
Derealization is basically a change, an alteration in the PERCEPTION or experience of the external world....in other words...everything LOOKS very strange, very "unreal" (movie like, in my experiences). Depersonalization is a subjective experience of unreality of one's self. So the difference is...