John Gallacher

Director, BrainWaves / Professor of Cognitive Health, University of Oxford

Expert in brain health, population studies, and large-scale research infrastructure

John Gallacher is Professor of Cognitive Health at the University of Oxford and Director of Dementias Platform UK (DPUK), an MRC-funded public–private partnership focused on accelerating research into the early detection and treatment of dementia. His work centres on brain health across the life course and the use of large-scale data to advance medical research.

He holds visiting professorships at Imperial College London and the University of Hong Kong and is Principal Investigator of the Caerphilly Prospective Study (CaPS), one of the longest-running population studies of cognitive and physical health. He is also a member of the UK Biobank Strategic Oversight Committee.

Professor Gallacher has led and contributed to major national research initiatives that have shaped the UK’s health data infrastructure and enabled international collaboration in neuroscience and mental health research.

Contribution to BrainWaves
Within BrainWaves, Professor Gallacher contributes senior scientific leadership, supporting the development of a robust, longitudinal research platform to improve understanding of adolescent brain health.