She has specialised in the field of Child Clinical Psychology since 2004, initially working in the areas of Looked after Children and childhood obesity. She then moved to specialise in the fields of paediatric neurology and neurodevelopment, working initially with children with ASD and then Complex Motor Disorders. She joined the Tic and Neurodevelopmental Movement (TANDeM) team at the Evelina London in 2017. Tamsin delivers both individual and group therapy to support children and families who experience tics, stereotypies and/or functional movements. She is also involved in on-going research within these areas.