Josef Priller is a Professor of Neuropsychiatry at the Charité in Berlin. He is chairing the only independent academic neuropsychiatry service in Germany with a particular focus on neurodegenerative diseases and autoimmune encephalopathies. From the research angle, he is interested in regenerative medicine and neuroimmunology. Hugh Rickards is a Consultant in Neuropsychiatry and Honorary Reader in Neuropsychiatry at Birmingham University. He is interested in general clinical neuropsychiatry and is part of a service that offers assessment and treatment for the full range of neuropsychiatric disorders. From the research angle, he is interested in the interaction between motor and psychiatric disorders, particularly in relation to Tourette syndrome and Huntington's disease.