<prompt> Delusional belief about subjective double is called:DoppelgangerAutoscopyDelusion of misidentificationDepersonalization  <response>: Doppelganger is the delusional belief that there is a subjective double. Delusion of misidentification are of two types - positive and negative. Negative misidentification is called as Capgras syndrome. Positive misidentification is called as Fregolis syndrome. Autoscopy is looking oneself externally and knowing it as themselves. 