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Senior Lecturer


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Research interests and activities

Giles trained in psychiatry at Imperial College in London, undertaking five years of clinical work in the Hawke's Bay before accepting a role in the Department of Psychological Medicine. He is a general adult consultant psychiatrist with a sub-specialty in substance misuse psychiatry. His research interests include the clinical understanding of personality disorders, particularly as they relate to psychiatric patients and mental state disorder. He is also interested in the interface between psychiatry and society, particularly the application of coercive practices.

He is a member of the International Society for the Study of Personality Disorders and the Australasian Society for Psychiatric Research. He is one of the systematic reviews editors of the British Journal of Psychiatry and sits on the board of the British Journal of Psychiatry and The Psychiatrist.

At the University he is responsible for the sixth year program in psychological medicine in Wellington. He is an accredited examiner for the RANZCP and works as a consultant psychiatrist for CCDHB in the Regional Personality Disorder Service.


Buchanan, M., Newton-Howes, G., Cunningham, R., McLeod, G. F. H., & Boden, J. M. (2024). The role of social support in reducing the long-term burden of cumulative childhood adversity on adulthood internalising disorder. Social Psychiatry & Psychiatric Epidemiology. Advance online publication. doi: 10.1007/s00127-024-02674-6 Journal - Research Article

Calais-Ferreira, L., Armstrong, G., Hahn, E., Newton-Howes, G., Foulds, J., Hopper, J. L., … Young, J. T. (2024). Mental disorders and discrimination: A prospective cohort study of young twin pairs in Germany. SSM Population Health, 25, 101622. doi: 10.1016/j.ssmph.2024.101622 Journal - Research Article

Bhui, K., O'Brien, A., Upthegrove, R., Tsai, A. C., Soomro, M., Newton-Howes, G., … Kaufman, K. R. (2024). Protecting and promoting editorial independence. British Journal of Psychiatry. Advance online publication. doi: 10.1192/bjp.2024.6 Journal - Research Other

Savage, M. K., Lepping, P., Newton-Howes, G., Arnold, R., Staggs, V. S., Kisely, S., … Noorthoom, E. O. (2024). Comparison of coercive practices in worldwide mental healthcare: Overcoming difficulties resulting from variations in monitoring strategies. BJPsych Open, 10, e26. doi: 10.1192/bjo.2023.613 Journal - Research Article

Buchanan, M., Walker, G., Boden, J. M., Mansoor, Z., & Newton-Howes, G. (2023). Protective factors for psychosocial outcomes following cumulative childhood adversity: Systematic review. BJPsych Open, 9, e197. doi: 10.1192/bjo.2023.561 Journal - Research Other

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