
Discipline Theme Leaders
The ICN’s discipline themes bring together international experts who are advancing the science and application of N-of-1 trials and single-case designs across healthcare and research. Each theme supports collaboration, knowledge exchange and the development of resources within its discipline while contributing to the broader ICN community.

Jane Nikles
Medicine
Explore the Medicine Theme →

Suzanne McDonald
Psychology
Dr Suzanne McDonald is a chartered psychologist specialised in health psychology. She has extensive experience applying N-of-1 trials and single-case designs to understand health behaviours, evaluate personalised interventions and study chronic disease symptoms.
Explore the Psychology Theme →

Kerrie Evans
Physiotherapy

Veronique Chachay
Nutrition
Dr Veronique Chachay is a Nutrition Scientist with extensive experience applying N-of-1 trials and single-case designs to investigate individual responses to dietary interventions and advance rigorous, personalised nutrition research. Her work spans weight management, metabolic health and precision nutrition.
Explore the Nutrition Theme →

Hortensia Gimeno
Occupational Therapy
Dr Hortensia Gimeno is a Clinical Reader in Child Health Research at Queen Mary University of London and Associate Director of Therapies Research at Barts Health NHS Trust. She has experience applying single-case experimental designs to evaluate rehabilitation interventions and improve outcomes for children and young people with movement disorders.
Explore the Occupational Therapy Theme →

Sandra Grace
Complementary Medicine
Explore the Complementary Medicine Theme →

James McGree
Statistics

Digital Health
Dr Suzanne McDonald is a research methodologist with extensive experience applying digital N-of-1 methods to identify personalised symptom patterns, symptom triggers and individual treatment responses using wearable technologies, apps and person-generated health data.
Explore the Digital Health Theme →
Suzanne McDonald
