Our Team

Liz Gilbert
Behaviour Scientist & Researcher
Liz is an HCPC registered and Chartered Health Psychologist and a UKPHR Public Health Practitioner. Liz has 18 years’ experience of working within health psychology, behaviour change and public health. Liz is also a National Hub Lead and committee member of the Behavioural Science and Public Health Network.
CEO, Hidden Voices Heard
Ruth Dale is CEO of Hidden Voices Heard, as well as the trainer and host of the Behaviour Change Marketing Bootcamp podcast. She has applied behavioural science to marketing and communications for over fifteen years, tackling society's biggest challenges, including vaccination, smoking, weight loss, getting active, and mental health.
Ruth has won awards for work on antimicrobial resistance, skin cancer, and reducing demand in A&E. She strongly believes that marketing can have a positive impact, which was demonstrated when she won the HSJ Award for Social Marketing. Ruth has worked across the NHS, including in Primary Care Trusts, within Public Health in Local Authorities and at Public Health England.
Dr Nikita Rowley
Ruth Dale
Behavioural Scientist & Researcher
Alison Trout is a Chartered Health Psychologist registered with the HCPC and a Behavioural Scientist. She has extensive experience working with public health teams to develop effective public health interventions using behavior science. Alison also has over fifteen years of clinical experience as a Psychologist, working with various client groups.
Alison has previously worked as a Senior Research Fellow at Warwick University and contributed as main author / co-author to several research papers.
Alison Trout

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Claire Holgate
Digital Illustrator and Visual Thinker
Claire is an accomplished digital illustrator who has over 20 years' experience delivering creative communications for both public and private sector clients. Her ability to capture and communicate insights in a visual format is incredible and her graphics speak for themselves.
Claire provides creative support to Hidden Voices Heard projects, usually in the form of visual 'doodle' summaries of research findings and our Behavioural Insights Deep Dive workshops.
Behavioural Scientist & Researcher.
Dr Nikita Rowley, PhD, CPsychol, is an experienced mixed method Researcher and Chartered Psychologist. Nikita has vast research experience in a variety of areas including health behaviour change, public health, physical activity, exercise and health, and implementing both behaviour change and behavioural insights. Nikita can provide support with exploring the evidence base, designing methodologies, recruiting and conducting research, analysing both qualitative and quantitative data and disseminating findings.
Dr Nikita Rowley
Behavioural Scientist & Researcher
Alison Trout is a Chartered Health Psychologist registered with the HCPC and a Behavioural Scientist. She has extensive experience working with public health teams to develop effective public health interventions using behavior science and has over 15 years of clinical experience as a Psychologist working with various client groups.
Alison has previously worked as a Senior Research Fellow at Warwick University and contributed as main author / co-author to several research papers.
Claire Colgate
The Team

Behavioural Scientist & Researcher
Dr Nikita Rowley (PhD, CPsychol) is an experienced mixed method Researcher and Chartered Psychologist. Nikita has vast research experience in a variety of areas, including health behaviour change, public health, physical activity, exercise and health and implementing both behaviour change and behavioural insights.
Nikita can provide support with exploring the evidence base, designing methodologies, recruiting and conducting research, analysing both qualitative and quantitative data and disseminating findings.