DELUSION OF OBSERVATION By N., Sam M.S. - 14 The belief where a person thinks he is being watched. Also called observation delusion. DELUSION OF OBSERVATION: "Joe was under a delusion of observation when he thought he was being watched." Related Psychology Terms Dissociative Identity Disorder NIHILISM (Nihilistic Delusion) MASS HYSTERIA LEGAL PSYCHIATRY (Forensic Psychiatry) DELUSION COLOR REACTIONS LEARNING ADDS Diagnosis and Treatment Planning MANIC-DEPRESSIVE REACTION (DEPRESSIVE PHASE) SOMATIC DELUSION Cite this page: N., Sam M.S., "DELUSION OF OBSERVATION," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/delusion-of-observation/ (accessed October 5, 2022).