The etiology of delusional disorder is not fully understood, but it is believed to involve a combination of genetic, biological, and environmental factors. Neurotransmitter imbalances, particularly involving dopamine, may play a significant role in the development of delusional beliefs. Additionally, stressful life events, social isolation, and certain personality traits can contribute to the onset of the disorder. Family history of mental illness may also increase susceptibility.
Delusional disorder is typically a chronic condition, but with appropriate treatment, a remission of delusional symptoms occurs in up to 50% of patients
Delusional disorder ( delusional thinking) is characterized by the presence of recurrent, persistent non-bizarre delusions.
Obsessive Delusional Heterodoxy Disorder
Etiology is the study of causes. So I am unsure what you are looking for due to the fact that this is not a disorder or a disease.
Yes
Etiology is the study of the cause of a disease.
Paranoid schizophrenia, delusional disorder (persecutory type), and paranoid personality disorder (PPD).
This is a modern concept and doesn't apply to this time in history.
In mental disorders, Brief Psychotic Disorder, Schizoaffective Disorder, Schizophreniform Disorder, Schizophrenia, and Delusional Disorder can cause delusions. In some cases, severe mania or depression can cause delusions.
Erotomania or Erotomanic type of Delusional Disorder
Delusions and hallucinations. Other disorders that are similar are Schizophrenia and Delusional Disorder
Individuals with paranoid schizophrenia and persecutory delusional disorder experience what is known as persecutory delusions