Abstract
The search for transdiagnostic pathways and processes to emotional disorders in youth is an emerging and compelling field. In this mini-review, intolerance of uncertainty is posed as a transdiagnostic pathway. The theoretical foundation of intolerance of uncertainty is discussed. Subtypes of intolerance of uncertainty are explained, a behavioral typology is reviewed, neuropsychological correlates are briefly discussed, and age differences are addressed. The role of the Coronavirus-19 pandemic as a critical incident is examined. Subsequently, the research supporting the association between intolerance of uncertainty and anxiety, obsessive-compulsive,, depression, autism, as well as eating disorders is reviewed. The findings are then integrated into a parsimonious theoretical synthesis. Limitations of the research are delineated and clinical implications are presented
Key Words: Intolerance of uncertainty, transdiagnostic, anxiety, depression, autism, eating disorders