paraphrenia

Paraphrenia is a term that has been used to describe a psychiatric condition characterized by systematized delusions, particularly persecutory or grandiose ones, in the context of a preserved cognitive state and without prominent hallucinations. It is often considered a form of late-onset schizophrenia or a subtype of paranoid disorder. The delusions are typically well-organized and may revolve around themes of being persecuted, poisoned, or betrayed, or alternatively, the individual may believe they possess special powers or are of royal lineage.

The onset of paraphrenia is generally in later life, often after the age of 60, distinguishing it from earlier onset forms of schizophrenia. While delusions are the primary feature, individuals with paraphrenia usually maintain their daily functioning and cognitive abilities, such as memory and judgment, to a considerable extent. This preservation of general cognitive function is a key aspect that differentiates it from other forms of dementia or cognitive decline. Hallucinations, if present, are typically not as prominent or central to the experience as the delusions.

The exact classification and nosology of paraphrenia remain a subject of debate within psychiatry. Some view it as a distinct entity, while others consider it a variant of paranoid schizophrenia or a senile psychosis. Diagnosis relies on the presence of persistent, systematized delusions in the absence of significant cognitive impairment or other psychotic symptoms. Treatment often involves antipsychotic medication and psychotherapy, with the aim of managing the delusions and improving the individual's quality of life.