Samuel Tromans is an Associate Professor of Psychiatry at the Department of Health Sciences, University of Leicester, and an Honorary Consultant Psychiatrist at the Adult Learning Disability Service, Leicestershire Partnership NHS Trust. He completed his PhD in autism epidemiology in 2021 at the University of Leicester, under the supervision of Professor Traolach (Terry) Brugha, who he continues to work with. As a psychiatry trainee, he won the Alec Shapiro prize (Royal College of Psychiatrists) three times. His academic research is related to psychiatric epidemiology, and clinically he works as a community psychiatrist for adults with intellectual disabilities.
Regi Alexander graduated from the University of Kerala, India and completed a Diploma in Psychological Medicine from the National Institute of Mental Health & Neurosciences, India. He is a fellow of the Royal College of Psychiatrists and served as its associate dean for advanced learning. An author of about 100 publications, he is also the editor of the Oxford Textbook of Psychiatry of Intellectual Disability. He is the current President of the Royal Society of Medicine- Intellectual Disability Section and convenor of RADiANT - a research network of NHS Trusts, academics, service-users, and family members.
Satheesh Gangadharan graduated in medicine from University of Kerala, India, completed post-graduation in psychiatry (MD psychiatry and Diplomate of the National Board of Medicine) before moving to UK. Fellow of the Royal College of Psychiatrist, been a consultant in psychiatry of Intellectual Disability for 20 years and held senior leadership roles in NHS such as being the Medical Director of Leicestershire Partnership NHS Trust. Currently focusing on clinical work and research with affiliations to University of Leicester and Loughborough University.
Chaya Kapugama is a consultant psychiatrist in intellectual disabilities at Sussex Partnership Foundation Trust and an honorary senior (clinical) lecturer at Brighton and Sussex Medical School. She graduated from University of Colombo, Sri Lanka and has completed her higher training in Intellectual Disability Psychiatry in Leicester.
Sabyasachi Bhaumik practiced as a Consultant Psychiatrist in Learning Disability and was the Medical Director of Leicestershire Partnership NHS Trust, where he established a nationally recognized research culture in learning disability. In 2005, he was winner of Hospital Doctor Award for Psychiatry Team of the Year, and was awarded an OBE in 2006 for services to medicine. He served as Chair of Faculty of LD, RCPsych (2006-2010), after which he led the College's international education and training programme. He was Chair of the Diaspora Organisation Committee of RCPsych and Honorary Professor of Psychiatry with the University of Leicester.

Intellectual disability is a lifelong condition involving deficits in both intellectual and adaptive functioning. Individuals with intellectual disability experience a greater burden of co-occurring physical and mental illness compared to the general population, and often need a significant degree of support from healthcare professionals and carers, as well as family and friends. Additionally, their lives can be greatly influenced both positively and negatively by
the cultures in which they exist, including societal attitudes, belief systems and norms.
An insightful addition to the Oxford Cultural Psychiatry series, Psychiatry of Intellectual Disability across Cultures explores the health, support structures, and societal attitudes towards people with intellectual disabilities throughout the world.
Written by international experts of intellectual disability and mental health, this comprehensive textbook covers broad topics such as anthropology, mental health, physical health, research, and sexuality. It also comprises chapters dedicated to specific geographic regions, such as Africa, America, Australasia, Europe, India, the Middle East, and the United Kingdom and Ireland.