In this talk Sue will explore how existing models of neurodevelopment are failing to sufficiently account for a growing transdiagnostic research literature. She will describe new findings from autism research that additionally challenge traditional models, and even diagnostic criteria. She will then propose the concept of neurodiversity as a new paradigm which can underpin a much-needed shift in research and practice. She will describe the paradigm in detail, directly addressing common questions including whether the neurodiversity movement adopts an anti-psychiatry position, or not.  IN the final part of the talk she will characterise a Neurodiversity-affirmative clinical service, laying out core principles and specific examples of these in action.  She will finish by directly asking whether and how this model, largely originated to explain neurodevelopmental diversity, is also a powerful tool for mental health research and practice.