This project aims to significantly deepen understanding of the phenomenon of radicalisation toward violent extremism by moving beyond static descriptions of what antecedents are present in violent extremists to dynamic causal explanations of why people radicalise. Using experimental and survey data, this project expects to identify how radicalisation is enabled by cognitive changes resulting from interactions between social environments, cognitions, and behavioural responses. Expected outcomes include modelling the process(es) of radicalisation, including the cognitions of those at risk, and benefits include increased understanding of risk and empowerment of practitioners tasked with identifying and diverting those at risk of radicalising.