Dr Gemma Lewis

Dr Gemma Lewis


Division of Psychiatry

Faculty of Brain Sciences

Joined UCL
1st Sep 2014

Research summary

I investigate the epidemiology of common mental disorders - depression and anxiety. 

Teaching summary

I am a lecturer on the UCL Masters in Mental Health Sciences course. I co-lead and teach on the following modules:

  • Statistics
  • Epidemiology
  • Depression and anxiety  
  • Children and young people's mental health
I welcome enquiries from potential PhD students.


I did my PhD, 'Family and genetic influences on child and adolescent depression', at the Department of Psychological Medicine and Clinical Neurosciences, Cardiff University (2012). I used large cohorts with information on genetic relatedness (e.g. twins and children conceived via IVF) to test environmental influences on depression that are independent of genetics. 

After my PhD I conducted an evaluation of the Family Drug and Alcohol Court (FDAC), a specialised intervention for parents with substance abuse and psychiatric problems. I then worked for the National Centre for Social Research (NatCen) as a quantitative researcher in the Children and Young People team. 

From October 2014 I worked as a Research Associate in the Department of Psychiatry, University of Cambridge, investigating adolescent depression using a longitudinal population-based sample, the ROOTS study. I also assisted in the development of the Neurosciences in Psychiatry Network (NSPN), a large study of the development of the adolescent brain.  

I have been based at the Division of Psychiatry at University College London since November 2015.