Carlos Morra and Ernst Franzek: Psychopathological Symptoms 
Sosias´ delusion

Definition: False belief about other people not being who they are because they have been replaced by their own doubles (Capgras and Reboul-Lachaux 1923). 

Exploration: The presence of sosias´delusion can be established during the interview with the patient. 

Reference: 

Capgras J, Reboul-Lachaux J. L’illusion des sosies dans undelire

systématise chronique. Bulletin de la Societé clinique de Medicine Mental

1923; 2: 6-16. 

February 7, 2019