Dr Hamilton Morrin is a Psychiatry Registrar at South London and Maudsley NHS Foundation Trust and is currently undertaking a PhD as part of the Wellcome Trust funded King’s PhD Programme in Mental Health Research for Health Professionals. He has been at King’s since 2013.

Dr Morrin trained in medicine (MBBS; King’s College London), medical genetics (BSc(Hons); King’s College London), and clinical psychiatry (MRCPsych; Royal College of Psychiatrists). In 2019 he received a Royal College of Psychiatrists Psych Star Fellowship to explore his interest in Clinical Neuropsychiatry. In 2023 he was awarded an NIHR Academic Clinical Fellowship as well as the Royal College of Psychiatrists Core Psychiatric Trainee of the Year Award. In 2024 he was awarded a Wellcome Trust Doctoral Fellowship, and in 2025 he received his PGCert in Applied Research Methods. He is a 2026 recipient of The Japanese Society of Psychiatry and Neurology Fellowship Award.

Dr Morrin is the lead investigator for BRaVE-FND (Brain-computer interface Rehabilitation and Virtual Environments in Functional Neurological Disorder), a study exploring the feasibility and acceptability of neurofeedback-based rehabilitation in FND.

Dr Morrin is joint lead for the LAMBDA (Looking After Minds and Brains in the Digital Age) research group, where he leads on work exploring the impact of artificial intelligence chatbots on user mental health. He is joint Principal Investigator for the King’s Together Seed Fund Project – ‘Safeguarding Minds in the Age of AI’ and is PI for the OpenAI Mental Health Grant project ‘AI-Associated Mental Health Harms’.

Dr Morrin sees patients with neuropsychiatric disorders at the Queen Square National Hospital for Neurology and Neurosurgery as an Honorary Psychiatry Specialty Registrar.

Research Interests

• Neuropsychiatry
• Functional neurological disorder    
• Psychosis studies
• Human-technology interactions   
• AI-associated psychopathology 
• Neurotechnology
• Brain-computer interface technology 
• Virtual reality

Research Groups

Neuropsychiatry Research & Education Group (NREG)

Maudsley Neurotechnology (MNT) where he jointly leads the monthly Maudsley Neurotechnology Group Meetings

Expertise and Public Engagement

Dr Morrin’s research on AI-associated mental health harms has been covered widely in the media and he has been interviewed by TIME, Scientific American, The Wall Street Journal, The Guardian, Der Spiegel, BBC News as well as various other platforms. He has also delivered a TedX talk on his work on AI-associated delusions, and has spoken on several podcasts.

Dr Morrin is Core Lead and Trustee for UK charity Gaming the Mind and delivers lectures at the National Film and Television School on the Games Design and Development MA. He also does consultancy work for game developers exploring themes relating to mental health.

He has served two terms as the Maudsley Training Programme Junior Doctor Committee President. He has also served as Trainee Co-Lead for the International Neuropsychiatric Association / Global Neuropsychiatry Group, and as Digital Lead for the UK FND Network.

Teaching

Dr Morrin is a dissertation supervisor and examiner on the Clinical Neuropsychiatry MSc and has delivered postgraduate teaching and lectures for psychiatric trainees on the Maudsley Training Programme and other regional psychiatry training programmes. He has also coordinated undergraduate teaching and previously served as co-president of the King’s Psychiatry Early Experience Programme.  Dr Morrin has received honoraria to deliver training for the Washington State Department of Social and Health Services and for presenting to the Canadian Psychological Association.

Key Publications 

 1.    Morrin H et al. (2026) Artificial intelligence-associated delusions and large language models: risks, mechanisms of delusion co-creation, and safeguarding strategies. Lancet Psychiatry

2.    Morrin H et al. (2026) It Is the Journey, Not the Destination: Moving From End Points to Trajectories When Assessing Chatbot Mental Health Safety. JMIR Mental Health

3.    Blackman G, Morrin H et al. (2026) Psychopathology distinguishing secondary ("organic") psychoses: A systematic review and meta-analysis. Schizophrenia Research

4.    Morrin H et al. (2025) Neuropsychiatric and mental health outcomes in hyperemesis gravidarum: a retrospective cohort study. Lancet Obstetrics, Gynaecology, & Women’s Health

5.    Brouwer D, Morrin H et al. (2024) Virtual reality in functional neurological disorder: a theoretical framework and research agenda for use in the real world. BMJ Neurology Open