The cognitive‒behavioural model describes the maladaptive processes that can occur during mental disorders.1 Maladaptive beliefs can lead to maladaptive cognitions following exposure to certain triggers (e.g., situations, events, sensations, other thoughts).1 The triggers are evaluated and interpreted – appraisal – which leads to a subjective experience, physiological symptoms, and behavioural response.1 These feed into each other and further support the maladaptive cognitive appraisal of the situation, establishing a positive feedback loop and vicious cycle.1

Reference:
1. Hofmann SG. An Introduction to Modern CBT. New York: Wiley, 2011.