Margaret Westwater
PhD
Sir Henry Wellcome Postdoctoral Fellow
Research Interests
I am a cognitive neuroscientist who studies the neurobiology of disordered eating and related conditions. It is increasingly recognised that disorders like anorexia nervosa are characterised by both psychological disturbances, as well as altered metabolic functioning. However, interactions between metabolic and cognitive processes in these patients remain poorly understood. I aim to combine cognitive neuroscience, computational modelling, and integrative physiology techniques to identify mechanisms by which peripheral metabolic functioning relates to higher-order cognition and eating behaviour in individuals with and without eating disorders.
Biography
After completing a B.S. in Neuroscience at George Mason University, I pursued an MPhil in Medical Sciences (Psychiatry) at the University of Cambridge under the supervision of Prof Paul Fletcher and Dr Hisham Ziauddeen. I then completed my PhD in Psychiatry as a part of the NIH-Oxford-Cambridge Scholars Program, where continued working with Prof Fletcher in Cambridge and Drs Christian Grillon and Monique Ernst at the National Institute of Mental Health. Prior to joining the Dept. of Psychiatry at Oxford, I was a T32 Postdoctoral Research Fellow at Yale University with Dr Dustin Scheinost.
Recent publications
Expectation Modulates Hedonic Experiences and Midbrain Responses to Sweet Flavor.
Journal article
Mainetto E. et al, (2026), J Neurosci, 46
Characterizing the Pleiotropic Architecture of Impulsivity and Its Links to Psychopathology and Neurodevelopment.
Journal article
Mallard TT. et al, (2026), Am J Psychiatry, 183, 31 - 47
Eating disorder symptoms are associated with altered reinforcement learning in the general population
Preprint
Westwater ML. et al, (2025)
The joint estimation of uncertainty and its relationship with psychotic-like traits and psychometric schizotypy.
Journal article
Gibbs-Dean T. et al, (2025), Npj Ment Health Res, 4
Functional Connectome Correlates of Laterality Preferences: Insights into Hand, Foot, and Eye Dominance across the Lifespan.
Journal article
Tejavibulya L. et al, (2025), eNeuro, 12
