A delusional jealous belief that a partner is unfaithful is known in psychiatry as what syndrome, after a Shakespeare character?
Delusional disorder frequently used by people with antisocial personality disorder or narcissistic personality disorder. Sometimes, gaslighting can be unintentional, for example if a person, or a group of people aim to lie or cover up an issue, it can lead to the victim being gaslighted as well. In other situations the delusion may turn out to be true belief. For example, in delusional jealousy, where a person believes that their partner is being unfaithful (and may even follow them into the bathroom believing them to be seeing their lover even during the briefest of partings), it may actually be true that the
Delusional misidentification syndrome Delusional misidentification syndrome Delusional misidentification syndrome is an umbrella term, introduced by Christodoulou (in his book "The Delusional Misidentification Syndromes", Karger, Basel, 1986) for a group of delusional disorders that occur in the context of mental and neurological illness. They all involve a belief that the identity of a person, object, or place has somehow changed or has been altered. As these delusions typically only concern one particular topic, they also fall under the category called monothematic delusions. This psychopathological syndrome is usually considered to include four main variants: However, similar delusional beliefs, often singularly or more rarely reported, are