Definition:
Derealization is a change in the way you perceive the world. Your environment may feel unreal or unfamiliar, and you may feel like you are in a dream or that everything is an illusion. Although derealization involves a change in perception, you remain connected to reality -- unlike in a psychotic episode.
Frequent or recurring derealization may be a symptom of depression, anxiety disorders such as social anxiety disorder (SAD), or post-traumatic stress disorder (PTSD). Derealization may also result from the use of drugs or alcohol.
Treatment of this problem is usually directed at the disorder of which derealization is a symptom.
