Skip to main content
Intermediate Technical In the Industry Vocabulary Test

first-episode psychosis

The initial occurrence of psychotic symptoms in an individual, representing a critical period for early intervention and treatment.

Full Definition

First-episode psychosis refers to the first time an individual experiences psychotic symptoms such as hallucinations, delusions, disorganized thinking, or severely disorganized behavior. This period is considered crucial because early intervention can significantly impact long-term outcomes and prognosis. Research has shown that the duration of untreated psychosis (DUP) is an important prognostic factor, with shorter periods associated with better outcomes. First-episode psychosis studies often focus on young adults and adolescents, as most psychotic disorders have their onset during this developmental period. These studies may investigate optimal treatment strategies, biomarkers for prediction and monitoring, and factors that influence treatment response and functional recovery.

Usage

Usage note: Hyphenate when used as compound modifier; may be abbreviated as FEP in clinical contexts.

In Context

  • "The study enrolled patients within six months of their first-episode psychosis." — Inclusion criteria
  • "First-episode psychosis patients showed greater treatment response compared to chronic patients." — Research findings

Also known as

FEP

Contrasted with

treatment-resistant psychosis chronic psychosis

Don't confuse with

prodromal syndrome brief psychotic disorder

Editors from these organizations have used our services since 1998

Reuters BBC Oxford University Press Penguin Random House Springer Microsoft Suncor Energy United Nations Fisher Investments IBM The Home Depot KODAK CHEVRON