Delusional misidentification syndrome

Question 1

Intermetamorphosis

Answer 1

In intermetamorphosis that patient believes that people have swapped identities whilst maintaining the same appearance. For example believing your brother to be your father

Question 2

Subjective doubles

Answer 2

In subjective doubles the patient believes that they have a doppelganger

Question 3

Reduplicative paramnesia

Answer 3

The delusion that a place has been duplicated. It comes in three forms (Politis, 2012):

Place reduplication - the belief that two places with identical features exist simultaneously, but are geographically distant
Chimeric assimilation - the belief that two places become combined, for example, a patient in hospital believes that they are in their own home which has somehow transformed into the hospital
Extravagant spatial localisation - belief that their current location is actually somewhere else, usually a location familiar to them

Question 4

Mirrored self

Answer 4

Mirrored-self misidentification involves the misperception that ones reflection in the mirror is a stranger

Question 5

Delusional companions

Answer 5

Individuals affected with the syndrome of delusional

companions believe nonliving objects possess consciousness, can think independently, and feel emotio

Question 6

Clonal pluralisation of the self

Answer 6

Clonal pluralization of the self differs from the syndrome of subjective doubles, in that the patient believes that there are multiple copies of himself who are physically and psychologically similar to themselves