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Associate Professor Giles Newton-Howes

Senior Lecturer

Giles_Newton-Howes_profile

Contact details

Email giles.newton-howes@otago.ac.nz

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.

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Publications

Foulds, J. A., Boden, J. M., McKetin, R., & Newton-Howes, G. (2020). Methamphetamine use and violence: Findings from a longitudinal birth cohort. Drug & Alcohol Dependence, 207, 107826. doi: 10.1016/j.drugalcdep.2019.107826

Hemmati, A., Newton-Howes, G., Falahi, S., Mostafavi, S., Colarusso, C. A., & Komasi, S. (2020). Personality pathology among adults with history of childhood sexual abuse: Study of the relevance of DSM-5 proposed traits and psychobiological features of temperament and character. Indian Journal of Psychological Medicine. Advance online publication. doi: 10.1177/0253717620928813

Boden, J., Blair, S., & Newton-Howes, G. (2020). Alcohol use in adolescents and adult psychopathology and social outcomes: Findings from a 35-year cohort study. Australian & New Zealand Journal of Psychiatry, 54(9), 909-918. doi: 10.1177/0004867420924091

Braithwaite, I., Bhagavan, C., Doppen, M., Kung, S., Oldfield, K., & Newton-Howes, G. (2020). Medicinal applications of cannabis/cannabinoids. Current Opinion in Psychology, 38, 1-10. doi: 10.1016/j.copsyc.2020.06.002

Oldfield, K., Braithwaite, I., Beasley, R., Eathorne, A., Newton-Howes, G., & Semprini, A. (2020). Medical cannabis: Knowledge and expectations in a cohort of North Island New Zealand general practitioners. New Zealand Medical Journal, 133(1508), 12-28. Retrieved from https://www.nzma.org.nz/journal

Chapter in Book - Research

Newton-Howes, G., & Davidson, K. (2009). Management of personality disorder. In M. G. Gelder, N. C. Andreasen, J. J. Lópes-Ibor, Jr & J. R. Geddes (Eds.), New Oxford textbook of psychiatry (Vol. 1). (2nd ed.) (pp. 901-910). Oxford University Press.

Newton-Howes, G., & Tyrer, P. (2009). Personality disorders. In I. M. Salloum & J. E. Mezzich (Eds.), Psychiatric diagnosis: Challenges and prospects. (pp. 135-140). Oxford, UK: Wiley Blackwell.

Newton-Howes, G. (2006). Pharmacology and personality disorders. In M. J. Sampson, R. A. McCubbin & P. Tyrer (Eds.), Personality disorder and community mental health teams: A practitioner's guide. (pp. 143-160). Chichester, UK: John Wiley & Sons.

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Chapter in Book - Other

Newton-Howes, G., & Wood, R. (2015). Cognitive behavioural therapy and the psychopathology of schizophrenia: Systematic review and meta-analysis (Vol. 5). In G. Davey (Ed.), Psychopathology & abnormal psychology. (pp. 47-59). Sage.

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Journal - Research Article

Foulds, J. A., Boden, J. M., McKetin, R., & Newton-Howes, G. (2020). Methamphetamine use and violence: Findings from a longitudinal birth cohort. Drug & Alcohol Dependence, 207, 107826. doi: 10.1016/j.drugalcdep.2019.107826

Oldfield, K., Braithwaite, I., Beasley, R., Eathorne, A., Newton-Howes, G., & Semprini, A. (2020). Medical cannabis: Knowledge and expectations in a cohort of North Island New Zealand general practitioners. New Zealand Medical Journal, 133(1508), 12-28. Retrieved from https://www.nzma.org.nz/journal

Braithwaite, I., Bhagavan, C., Doppen, M., Kung, S., Oldfield, K., & Newton-Howes, G. (2020). Medicinal applications of cannabis/cannabinoids. Current Opinion in Psychology, 38, 1-10. doi: 10.1016/j.copsyc.2020.06.002

Boden, J., Blair, S., & Newton-Howes, G. (2020). Alcohol use in adolescents and adult psychopathology and social outcomes: Findings from a 35-year cohort study. Australian & New Zealand Journal of Psychiatry, 54(9), 909-918. doi: 10.1177/0004867420924091

Hemmati, A., Newton-Howes, G., Falahi, S., Mostafavi, S., Colarusso, C. A., & Komasi, S. (2020). Personality pathology among adults with history of childhood sexual abuse: Study of the relevance of DSM-5 proposed traits and psychobiological features of temperament and character. Indian Journal of Psychological Medicine. Advance online publication. doi: 10.1177/0253717620928813

Newton-Howes, G., Gordon, S., & Fedchuk, D. (2020). Making the World of Difference: A service user-led education programme reshaping the learning environment in psychiatry. Australasian Psychiatry, 28(2), 226-228. doi: 10.1177/1039856219878647

Newton-Howes, G., Cunningham, R., & Atkinson, J. (2020). Personality disorder prevalence and correlates in a whole of nation dataset. Social Psychiatry & Psychiatric Epidemiology. Advance online publication. doi: 10.1007/s00127-020-01876-y

Boden, J. M., Newton-Howes, G., Foulds, J., Spittlehouse, J., & Cook, S. (2019). Trajectories of alcohol use problems based on early adolescent alcohol use: Findings from a 35 year population cohort. International Journal of Drug Policy, 74, 18-25. doi: 10.1016/j.drugpo.2019.06.011

Newton-Howes, G., Cook, S., Martin, G., Foulds, J. A., & Boden, J. M. (2019). Comparison of age of first drink and age of first intoxication as predictors of substance use and mental health problems in adulthood. Drug & Alcohol Dependence, 194, 238-243. doi: 10.1016/j.drugalcdep.2018.10.012

Newton-Howes, G. (2019). Do community treatment orders in psychiatry stand up to principalism: Considerations reflected through the prism of the Convention on the Rights of Persons with Disabilities. Journal of Law, Medicine & Ethics, 47(1), 126-133. doi: 10.1177/1073110519840492

Newton-Howes, G., Pickering, N., & Young, G. (2019). Authentic decision-making capacity in hard medical cases. Clinical Ethics, 14(4), 173-177. doi: 10.1177/1477750919876248

Olajide, K., Munjiza, J., Moran, P., O'Connell, L., Newton-Howes, G., Bassett, P., … Mulder, R., & Crawford, M. J. (2018). Development and psychometric properties of the Standardized Assessment of Severity of Personality Disorder (SASPD). Journal of Personality Disorders, 32(1), 44-56. doi: 10.1521/pedi_2017_31_285

Beaglehole, B., Mulder, R. T., Frampton, C. M., Boden, J. M., Newton-Howes, G., & Bell, C. J. (2018). Psychological distress and psychiatric disorder after natural disasters: Systematic review and meta-analysis. British Journal of Psychiatry, 213(6), 716-722. doi: 10.1192/bjp.2018.210

Newton-Howes, G., Mulder, R., Ellis, P. M., Boden, J. M., & Joyce, P. (2018). Predictive utility of personality disorder in depression: Comparison of outcomes and taxonomic approach. Journal of Personality Disorders, 32(4), 513-526. doi: 10.1521/pedi_2017_31_311

Newton-Howes, G., Beverley, G., Ellis, P. M., Gordon, S., & Levack, W. (2018). What do final year medical students understand by the concept of recovery? A descriptive qualitative study. Academic Psychiatry, 42(3), 382-385. doi: 10.1007/s40596-017-0823-0

Guy, N., Newton-Howes, G., Ford, H., Williman, J., & Foulds, J. (2018). The prevalence of comorbid alcohol use disorder in the presence of personality disorder: Systematic review and explanatory modelling. Personality & Mental Health, 12(3), 216-228. doi: 10.1002/pmh.1415

Ford, K., Foulds, J., Coleman, O., Ardagh, M., Pearson, S., Droste, N., Newton-Howes, G., & Sellman, J. D. (2018). Alcohol-related emergency department attendances after the introduction of the Sale and Supply of Alcohol Act 2012. New Zealand Medical Journal, 131(1483), 40-49. Retrieved from https://www.nzma.org.nz/journal

Every-Palmer, S., Newton-Howes, G., & Clarke, M. J. (2017). Pharmacological treatment for antipsychotic-related constipation (Review). Cochrane Database of Systematic Reviews, 1, CD011128. doi: 10.1002/14651858.CD011128.pub2

Foulds, J. A., Boden, J. M., Newton-Howes, G. M., Mulder, R. T., & Horwood, L. J. (2017). The role of novelty seeking as a predictor of substance use disorder outcomes in early adulthood. Addiction, 112(9), 1629-1637. doi: 10.1111/add.13838

Foulds, J., Newton-Howes, G., Guy, N. H., Boden, J. M., & Mulder, R. T. (2017). Dimensional personality traits and alcohol treatment outcome: A systematic review and meta-analysis. Addiction, 112(8), 1345-1357. doi: 10.1111/add.13810

Herpertz, S. C., Huprich, S. K., Bohus, M., Chanen, A., Goodman, M., Mehlum, L., … Newton-Howes, G., … Sharp, C. (2017). The challenge of transforming the diagnostic system of personality disorders. Journal of Personality Disorders, 31(5), 577-589. doi: 10.1521/pedi_2017_31_338

Callaghan, S., & Newton-Howes, G. (2017). Coercive community treatment in mental health: An idea whose time has passed? Journal of Law & Medicine, 24(4), 900-914.

Newton-Howes, G. M., Foulds, J. A., Guy, N. H., Boden, J. M., & Mulder, R. T. (2017). Personality disorder and alcohol treatment outcome: Systematic review and meta-analysis. British Journal of Psychiatry, 211(1), 22-30. doi: 10.1192/bjp.bp.116.194720

Newton-Howes, G., Levack, W. M. M., McBride, S., Gilmore, M., & Tester, R. (2016). Non-physiological mechanisms influencing disulfiram treatment of alcohol use disorder: A grounded theory study. Drug & Alcohol Dependence, 165, 126-131. doi: 10.1016/j.drugalcdep.2016.05.027

Foulds, J. A., Mulder, R. T., Newton-Howes, G., Adamson, S. J., Boden, J. M., & Sellman, J. D. (2016). Personality predictors of drinking outcomes in depressed alcohol-dependent patients. Alcohol & Alcoholism, 51(3), 296-301. doi: 10.1093/alcalc/agv122

Newton-Howes, G., & Boden, J. M. (2016). Relation between age of first drinking and mental health and alcohol and drug disorders in adulthood: Evidence from a 35 year cohort study. Addiction, 111(4), 637-644. doi: 10.1111/add.13230

Newton-Howes, G., & Stanley, J. (2015). Patient characteristics and predictors of completion in residential treatment for substance use disorders. Psychiatric Bulletin, 39, 221-227. doi: 10.1192/pb.bp.114.047639

Newton-Howes, G., Clark, L. A., & Chanen, A. (2015). Personality disorder across the life course. Lancet, 385(9969), 727-734. doi: 10.1016/s0140-6736(14)61283-6

Newton-Howes, G., Horwood, J., & Mulder, R. (2015). Personality characteristics in childhood and outcomes in adulthood: Findings from a 30 year longitudinal study. Australian & New Zealand Journal of Psychiatry, 49(4), 377-386. doi: 10.1177/0004867415569796

Newton-Howes, G. (2014). The impact of mental state disorder and personality on social functioning in patients engaged in community mental health care. Australasian Psychiatry, 22(1), 19-22. doi: 10.1177/1039856213500093

Newton-Howes, G., Lacey, C. J., & Banks, D. (2014). Community treatment orders: The experiences of non-Maori and Maori within mainstream and Maori mental health services. Social Psychiatry & Psychiatric Epidemiology, 49(2), 267-273. doi: 10.1007/s00127-013-0734-7

Newton-Howes, G., & Banks, D. (2014). The subjective experience of community treatment orders: Patients' views and clinical correlations. International Journal of Social Psychiatry, 60(5), 474-481. doi: 10.1177/0020764013498870

Newton-Howes, G., Tyrer, P., Johnson, T., Mulder, R., Kool, S., Dekker, J., & Schoeveres, R. (2014). Influence of personality on the outcome of treatment in depression: Systematic review and meta-analysis. Journal of Personality Disorders, 28(4), 577-593. doi: 10.1521/pedi_2013_27_070

Newton-Howes, G., & Wood, R. (2013). Cognitive behavioural therapy and the psychopathology of schizophrenia: Systematic review and meta-analysis. Psychology & Psychotherapy: Theory, Research & Practice, 86(2), 127-138. doi: 10.1111/j.2044-8341.2011.02048.x

Newton-Howes, G. (2013). Use of seclusion for managing behavioural disturbances in patients. Advances in Psychiatric Treatment, 19, 422-428. doi: 10.1192/apt.bp.112.011114

Missen, R. L., Brannelly, T., & Newton-Howes, G. (2013). Qualitative exploration of family perspectives of smoke-free mental health and addiction services. International Journal of Mental Health Nursing, 22(4), 294-303. doi: 10.1111/j.1447-0349.2012.00882.x

Newton-Howes, G. (2013). A factor analysis of patients’ views of compulsory community treatment orders: The factors associated with detention. Psychiatry, Psychology & Law, 20(4), 519-526. doi: 10.1080/13218719.2012.715827

Newton-Howes, G., & Marsh, R. (2013). Personality dysfunction and social functioning in schizophrenia. Personality & Mental Health, 7(2), 114-121. doi: 10.1002/pmh.1206

Newton-Howes, G., & Stanley, J. (2012). Prevalence of perceived coercion among psychiatric patients: Literature review and meta-regression modelling. Psychiatrist, 36(9), 335-340. doi: 10.1192/pb.bp.111.037358

Newton-Howes, G., & Mullen, R. (2011). Coercion in psychiatric care: Systematic review of correlates and themes. Psychiatric Services, 62(5), 465-470. doi: 10.1176/appi.ps.62.5.465

Mulder, R. T., Newton-Howes, G., Crawford, M. J., & Tyrer, P. J. (2011). The central domains of personality pathology in psychiatric patients. Journal of Personality Disorders, 25(3), 364-377. doi: 10.1521/pedi.2011.25.3.364

Davidson, K., Halford, J., Kirkwood, L., Newton-Howes, G., Sharp, M., & Tata, P. (2010). CBT for violent men with antisocial personality disorder: Reflections on the experience of carrying out therapy in MASCOT, a pilot randomized controlled trial. Personality & Mental Health, 4(2), 86-95. doi: 10.1002/pmh.94

Tyrer, P., Mulder, R., Crawford, M., Newton-Howes, G., Simonsen, E., Ndetei, D., … Barrett, B. (2010). Personality disorder: A new global perspective. World Psychiatry, 9(1), 56-60.

Newton-Howes, G., Tyrer, P., Anagnostakis, K., Cooper, S., Bowden-Jones, O., & Weaver, T. (2010). The prevalence of personality disorder, its comorbidity with mental state disorders, and its clinical significance in community mental health teams. Social Psychiatry & Psychiatric Epidemiology, 45(4), 453-460. doi: 10.1007/s00127-009-0084-7

Newton-Howes, G., Tyrer, P., North, B., & Yang, M. (2008). The prevalence of personality disorder in schizophrenia and psychotic disorders: Systematic review of rates and explanatory modelling. Psychological Medicine, 38(8), 1075-1082. doi: 10.1017/S0033291707002036

Newton-Howes, G., Tyrer, P., & Weaver, T. (2008). Social functioning of patients with personality disorder in secondary care. Psychiatric Services, 59(9), 1033-1037. doi: 10.1176/appi.ps.59.9.1033

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