Transdiagnostic Biomarkers of Psychopathology: A Conceptual Review

Abstract

Psychiatric biomarker research has traditionally been organized around diagnostic categories, but clinical heterogeneity, comorbidity and shared biological mechanisms across psychiatric conditions have increased interest in transdiagnostic approaches. These approaches may be especially relevant for early recognition, stratification and intervention planning. Despite this growing interest, the concept of the transdiagnostic biomarker remains unclear. This conceptual review aimed to clarify how transdiagnostic biomarkers of psychopathology are represented in psychiatric research.