Stephanie J. Cragg (MA DPhil MAE) is a British physiologist who is Professor of Neuroscience at the University of Oxford. She holds a joint appointment as Professor in the Department of Physiology, Anatomy and Genetics, University of Oxford and as a Fellow (Official Student), Director of Studies and Tutor for Medicine at the college Christ Church, Oxford.
Cragg is a neuroscientist at the University of Oxford. In her early postdoctoral research career, she was an E.P. Abraham Junior Research Fellow at St. Cross College, then an E.P. Abraham Research Fellow at Keble College, then received a Beit Memorial Fellowship followed by a Paton Research Fellowship from the Department of Pharmacology, University of Oxford. She was a visiting scientist at New York University Depts of Physiology & Biophysics, and Neurosurgery, and at the University of North Carolina at Chapel Hill. She took up post as Associate Professor in Biomedical Sciences in DPAG, in association with a Tutorial Fellowship at Christ Church in 2006, before being made full Professor in 2014. She received the honour of election to Membership of the Academia Europaea in 2026.
Her work focusses on understanding the functioning in health and disease of the brain's dopamine circuits and related cell types that become dysregulated in Parkinson's disease, addictions and other neurological and neuropsychiatric disorders. This work focusses particularly on the regulation of dopaminergic transmission.
Cragg's work includes the study of how dopamine release in the striatum is regulated by other neuronal circuits, non-neuronal cells (astrocytes), and neuromodulators, including the neurotransmitters acetylcholine, GABA, adenosine, and dysregulation in Parkinson's disease. Some of her most cited work relates to the axonal regulation of dopamine transmission by acetylcholine, cholinergic interneurons and nicotinic acetylcholine receptors (nAChRs). In 2025, she co-edited with Prof. Mark E. Walton The Handbook of Dopamine, a defining volume capturing current understanding of dopamine biology in the brain.