John O'Brien

John O’Brien is Professor of Old Age Psychiatry in the Department of Psychiatry at the University of Cambridge. He is a National Institute for Health Research (NIHR) Emeritus Senior Investigator and a Fellow of the UK Academy of Medical Sciences. He is the NIHR Clinical Research Network National Specialty Lead for Dementia.
His main research interests are improving the diagnosis and management of Lewy body dementia and he was Chief Investigator on the DIAMOND-Lewy study. He has been a member of the National Institute for Health and Social Care Excellence (NICE) and several International Dementia Guideline groups.