Suzanne Reeves, PhD, is a professor of old age psychiatry and psychopharmacology in the Division of Psychiatry, University College London, an honorary consultant in Islington's Care Home Liaison Service, and the academic mental health lead for MBBS teaching at University College London. Her main research interest is in understanding the neurochemical basis of delusions and hallucinations in neurodegenerative disorders, improving the safety of existing antipsychotic drug treatments through pharmacokinetic-pharmacodynamic modelling, and identifying novel treatments. She is CI of the Parkinson's UK funded multi-centre Trial of Ondansetron as a Parkinson's HAllucinations Treatment (TOP HAT), which is recruiting in England, Scotland and Wales and will be extending to Northern Ireland in the near future.