Contact information
sara.costi@psych.ox.ac.uk
sara.costi@oxfordhealth.nhs.uk
https://orcid.org/0000-0002-7937-8596
she/her
Research groups
Colleges
Sara Costi
MD
Wellcome Trust Doctoral Fellow
As a DPhil candidate supported by a Wellcome Trust Fellowship at the Psychopharmacology and Emotion Research Lab (PERL) I am working under the guidance of my Supervisors Professor Catherine Harmer, Professor Susannah Murphy, and Professor Philip Cowen. My academic journey is driven by a profound interest in the field of clinical neuroscience and psychopharmacology, especially in the context of treatment resistance.
At the heart of my research is the question: How does ketamine, an NMDAR antagonist, trigger a rapid antidepressant effect? Recent studies in animals hint at ketamine's potential to modulate negative memory biases. My work aims to test if these findings apply also to humans using an experimental medicine model and implementing behavioural and neuroimaging (fMRI) approaches to investigate the neuroclinical effect of ketamine.
My research interests stem from my background as a psychiatrist and I am currently based at the Interventional Psychiatry Service at Oxfordhealth NHS Foundation Trust led by Professor Rupert McShane. Beyond my clinical practice, I co-chair of the Ketamine International Journal Club and I am a member of the steering committee for the Ketamine International Conference. I continue to collaborate with the Depression and Anxiety Center for Discovery and Treatment as Clinical Instructor at Icahn School of Medicine at Mount Sinai, New York, USA
My hope is that my work can inform how rapid acting antidepressant work, with the ultimate goal of contributing to the development of novel, rapid-acting treatments for mood and anxiety disorders.
Recent publications
Cognitive pathways describing ketamine’s effect on affective memories
Preprint
Hortelano PA. et al, (2025)
The renin angiotensin system in cognitive flexibility: Effects of single-dose losartan on task-switching in healthy volunteers
Preprint
Prasad D. et al, (2025)
cute angiotensin receptor blockade and mnemonic discrimination in healthy participants.
Journal article
Prasad D. et al, (2025), J Affect Disord, 375, 293 - 296
Ketamine for Major Depressive Disorder.
Journal article
Costi S., (2024), Curr Top Behav Neurosci, 66, 131 - 147
Social stress induces autoimmune responses against the brain.
Journal article
Shimo Y. et al, (2023), Proc Natl Acad Sci U S A, 120
