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.
Publications
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
Lee, R. M., Shoorangiz, R., Foulds, J. A., Almuqbel, M. M., Le Heron, C., Cleland, L., Keenan, R. J., Mulder, R., Porter, R. J., Newton-Howes, G., Douglas, K. M., Butler, A. P. H., Boden, J. M., & Melzer, T. R. (2023). Long-term impacts of cannabis on resting state functional networks: Are there any? In K.-L. Horne (Ed.), Proceedings of the 39th International Australasian Winter Conference on Brain Research (AWCBR). (pp. 57). Retrieved from https://www.awcbr.org Conference Contribution - Published proceedings: Abstract
2024
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
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 Other
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
2023
Journal - Research Article
MacSorley, P., Gordon, S., Gardiner, T., & Newton-Howes, G. (2023). Awareness of the need for change: A constructivist grounded theory of medical students’ understanding of human rights in mental health. Health & Human Rights, 25(1), 161-169.
Brown, T. A., Sellbom, M., Bach, B., & Newton-Howes, G. (2023). New Zealand (Aotearoa) clinicians' perspectives on the utility of the ICD-11 personality disorder diagnosis. Personality & Mental Health. Advance online publication. doi: 10.1002/pmh.1582
Lees, M., Newton-Howes, G., Frampton, C., & Beaglehole, B. (2023). Variation in the use of compulsory community treatment orders between district health boards in New Zealand. Australasian Psychiatry, 31(3), 349-352. doi: 10.1177/10398562231157246
Newton-Howes, G., Walker, S., & Pickering, N. J. (2023). Epistemic problems with mental health legislation in the doctor–patient relationship. Journal of Medical Ethics. Advance online publication. doi: 10.1136/jme-2022-108610
Beaglehole, B., Newton-Howes, G., Porter, R., & Frampton, C. (2023). The association between Compulsory Community Treatment Order status and mortality in New Zealand. BJPsych Open, 9, e15. doi: 10.1192/bjo.2022.629
De Salis, H. F., Martin, R., Bell, E., & Newton-Howes, G. (2023). A realist evaluation of residential treatment of adults with substance use disorder: Development of an initial programme theory. Journal of Psychosocial Rehabilitation & Mental Health, 10, 135-150. doi: 10.1007/s40737-022-00290-8
Boden, J. M., Foulds, J. A., Newton-Howes, G., & McKetin, R. (2023). Methamphetamine use and psychotic symptoms: Findings from a New Zealand longitudinal birth cohort. Psychological Medicine, 53, 987-994. doi: 10.1017/S0033291721002415
Journal - Research Other
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
Buchanan, M., Newton-Howes, G., McLeod, G., & Boden, J. (2023). Life course development following childhood adversity: Methods and findings from the Christchurch Health and Development Study. Longitudinal & Life Course Studies. Advance online publication. doi: 10.1332/175795921x16783739382061
De Salis, H. F., Martin, R., Mansoor, Z., Newton-Howes, G., & Bell, E. (2023). A realist review of residential treatment for adults with substance use disorder. Drug & Alcohol Review. Advance online publication. doi: 10.1111/dar.13615
Conference Contribution - Published proceedings: Abstract
Lee, R. M., Shoorangiz, R., Foulds, J. A., Almuqbel, M. M., Le Heron, C., Cleland, L., Keenan, R. J., Mulder, R., Porter, R. J., Newton-Howes, G., Douglas, K. M., Butler, A. P. H., Boden, J. M., & Melzer, T. R. (2023). Long-term impacts of cannabis on resting state functional networks: Are there any? In K.-L. Horne (Ed.), Proceedings of the 39th International Australasian Winter Conference on Brain Research (AWCBR). (pp. 57). Retrieved from https://www.awcbr.org
Buchanan, M., Newton-Howes, G., Cunningham, R., McLeod, G. F. H., & Boden, J. M. (2023). The role of social support in reducing the long-term burden of cumulative childhood adversity on adulthood internalising disorder. Proceedings of the New Zealand College of Clinical Psychologists (NZCCP) National Conference. Retrieved from https://www.nzccp.co.nz
2022
Journal - Research Article
Beaglehole, B., Newton-Howes, G., Porter, R., & Frampton, C. (2022). Impact of diagnosis on outcomes for compulsory treatment orders in New Zealand. BJPsych Open, 8, e145. doi: 10.1192/bjo.2022.547
Gordon, S., Gardiner, T., Gledhill, K., Tamatea, A., & Newton-Howes, G. (2022). From substitute to supported decision making: Practitioner, community and service-user perspectives on privileging will and preferences in mental health care. International Journal of Environmental Research & Public Health, 19, 6002. doi: 10.3390/ijerph19106002
Newton-Howes, G., Daly, M., Cooney, J., Gledhill, K., & Gordon, S. (2022). Supported decision making teaching in New Zealand postgraduate psychiatry trainees. Australasian Psychiatry, 30(5), 653-657. doi: 10.1177/10398562221100702
Pickering, N. J., Newton-Howes, G., & Walker, S. (2022). Risk-related standards of competence are a nonsense. Journal of Medical Ethics, 48, 893-898. doi: 10.1136/medethics-2021-108107
Pickering, N., Newton-Howes, G., & Young, G. (2022). Harmful choices, the case of C, and decision-making competence. American Journal of Bioethics, 22(10), 38-50. doi: 10.1080/15265161.2021.1941422
Journal - Research Other
Newton-Howes, G. (2022). We're taking the government to court to challenge New Zealand's outdated Mental Health Act: Here's why. The Conversation. Retrieved from https://theconversation.com/were-taking-the-government-to-court-to-challenge-new-zealands-outdated-mental-health-act-heres-why-191166
Walker, S., Williams, O., Newton-Howes, G., & Pickering, N. (2022). Reformulating decision-making capacity. American Journal of Bioethics, 22(11), 92-94. doi: 10.1080/15265161.2022.2123995
Pickering, N. J., Newton-Howes, G., & Walker, S. (2022). Risk-relativity is still a nonsense. Journal of Medical Ethics, 48(12), 1056-1057. doi: 10.1136/medethics-2022-108379
Newton-Howes, G., & Gordon, S. (2022). The need for a rights-based approach to acute models of care. World Psychiatry, 21(2), 240-241. doi: 10.1002/wps.20965
Knipe, D., Padmanathan, P., Newton-Howes, G., Chan, L. F., & Kapur, N. (2022). Suicide and self-harm. Lancet, 399, 1903-1916. doi: 10.1016/S0140-6736(22)00173-8
Cumming, C., Armstrong, G., Borschmann, R., Foulds, J. A., Newton-Howes, G., McKetin, R., … Young, J. (2022). Amphetamine-type stimulant use and self-harm: Protocol for a systematic review of observational studies. BMJ Open, 12(1), e057029. doi: 10.1136/bmjopen-2021-057029
Tyrer, P., Mulder, R., Newton-Howes, G., & Duggan, C. (2022). Galenic syndromes: Combinations of mental state and personality disorders too closely entwined to be separated. British Journal of Psychiatry, 220, 309-310. doi: 10.1192/bjp.2021.220
Newton-Howes, G., Austin, S., & Foulds, J. (2022). The prevalence of personality disorder in mental state disorder. Current Opinion in Psychiatry, 35(1), 45-52. doi: 10.1097/YCO.0000000000000761
Oldfield, K., Evans, S., Braithwaite, I., & Newton-Howes, G. (2022). Don’t make a hash of it! A thematic review of the literature relating to outcomes of cannabis regulatory change. Drugs: Education, Prevention, & Policy, 29(5), 439-450. doi: 10.1080/09687637.2021.1901855
Foulds, J., Knight, J. J., Young, J. T., Keen, C., & Newton-Howes, G. (2022). A novel graphical method for data presentation in alcohol systematic reviews: The interactive harvest plot. Alcohol & Alcoholism, 57(1), 16-25. doi: 10.1093/alcalc/agaa145
Conference Contribution - Published proceedings: Abstract
Newton-Howes, G. (2022). Using the courts to facilitate human rights based interpretations of civil mental health legislation. Proceedings of the Australasian Association of Bioethics and Health Law (AABHL) Conference. Retrieved from https://aabhl.org/conferences/
Newton-Howes, G. (2022). The epistemic problems with mental health legislation. Australian & New Zealand Journal of Psychiatry, 56(Suppl. 1), (pp. 157). doi: 10.1177/00048674221088686
Lee, R. M., Cleland, L., Foulds, J. A., Shoorangiz, R., Almuqbel, M. M., Le Heron, C., Keenan, R., Mulder, R., Porter, R., Newton-Howes, G., Douglas, K., Butler, A., Boden, J. M., & Melzer, T. R. (2022). Early cannabis use and its impact on the ageing brain: An MRI study of a New Zealand longitudinal birth cohort. In K. Horne (Ed.), Proceedings of the 38th International Australasian Winter Conference on Brain Research (AWCBR). (pp. 51). Retrieved from https://www.queenstownresearchweek.org
2021
Journal - Research Article
Beaglehole, B., Newton-Howes, G., & Frampton, C. (2021). Compulsory Community Treatment Orders in New Zealand and the provision of care: An examination of national databases and predictors of outcome. Lancet Regional Health: Western Pacific, 17, 100275. doi: 10.1016/j.lanwpc.2021.100275
Every-Palmer, S., Kininmonth, L., Newton-Howes, G., & Gordon, S. (2021). Applying human rights and reducing coercion in psychiatry following service user-led education: A qualitative study. Health & Human Rights, 23(2), 239-251.
Bach, B., Brown, T. A., Mulder, R. T., Newton-Howes, G., Simonsen, E., & Sellbom, M. (2021). Development and initial evaluation of the ICD-11 personality disorder severity scale: PDS-ICD-11. Personality & Mental Health, (15), 223-236. doi: 10.1002/pmh.1510
Boden, J. M., Crossin, R., Cook, S., Martin, G., Foulds, J. A., & Newton-Howes, G. (2021). Parenting and home environment in childhood and adolescence and alcohol use disorder in adulthood. Journal of Adolescent Health, 69, 329-334. doi: 10.1016/j.jadohealth.2020.12.136
Newton-Howes, G., Senior, J., Beaglehole, B., Purdie, G. L., & Gordon, S. E. (2021). Does a comprehensive service user-led education programme effect more positive attitudes towards recovery and less stigmatising attitudes towards people with lived experience of mental distress in medical students? A comparative cohort study. Australian & New Zealand Journal of Psychiatry, 55(9), 903-910. doi: 10.1177/0004867420987886
Gordon, S. E., Kininmonth, L. A., Newton-Howes, G., Purdie, G. L., & Gardiner, T. (2021). A comparative analysis of two alternative programmes to counter stigma and discrimination associated with mental illness delivered to medical students. Australasian Psychiatry, 29(3), 357-360. doi: 10.1177/1039856220971935
Oldfield, K., Ryan, J., Doppen, M., Kung, S., Braithwaite, I., & Newton-Howes, G. (2021). A systematic review of the label accuracy of cannabinoid-based products in regulated markets: Is what's on the label what's in the product? Australasian Psychiatry, 29(1), 88-96. doi: 10.1177/1039856220965334
Hemmati, A., Newton-Howes, G., Falahi, S., Mostafavi, S., Colarusso, C. A., & Komasi, S. (2021). 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, 43(2), 135-143. doi: 10.1177/0253717620928813
Journal - Research Other
Foulds, J. A., & Newton-Howes, G. (2021). Don't put the cart before the horse: Response to Young et al. 'assessment of ADHD in people with substance use disorder'. Australian & New Zealand Journal of Psychiatry, 55(8), 747-749. doi: 10.1177/00048674211013094
Cooney, J., Daly, M., Newton-Howes, G., Gledhill, K., & Gordon, S. (2021). Making the Convention on the Rights of Persons with Disabilities real: Our word is our bond. New Zealand Medical Journal, 134(1534), 8-10. Retrieved from https://www.nzma.org.nz/journal
Newton-Howes, G. (2021). The case for cautious paternalism in the emergency management of patients with borderline personality disorder. BJPsych Bulletin, 45, 86-89. doi: 10.1192/bjb.2020.148
Keen, C., Foulds, J. A., Willoughby, M., Newton-Howes, G., Knight, J., Fazel, S., … Young, J. T. (2021). Antidepressant use and interpersonal violence perpetration: A protocol for a systematic review and meta-analysis. BMJ Open, 11, e043306. doi: 10.1136/bmjopen-2020-043306
Conference Contribution - Poster Presentation (not in published proceedings)
Fane De Salis, H., Martin, R., Bell, E., & Newton-Howes, G. (2021, September). A realist evaluation of residential treatment of adults with substance use disorder: Promoting equity by understanding what works for whom. Poster session presented at the Achieving Health Equity from Research Conference [Otago Spotlight Series], Wellington, New Zealand.
Other Research Output
Pickering, N., Walker, S., & Newton-Howes, G. (2021, September). Asymmetry, competence and risk: The scale of the problem. Bioethics Centre, University of Otago, Dunedin, New Zealand. [Department Seminar].
2020
Journal - Research Article
Newton-Howes, G., Kininmonth, L., & Gordon, S. (2020). Substituted decision making and coercion: The socially accepted problem in psychiatric practice and a CRPD-based response to them. International Journal of Mental Health & Capacity Law, 26, 4-12. doi: 10.19164/ijmhcl.26.1091
Newton-Howes, G., Savage, M. K., Arnold, R., Hasegawa, T., Staggs, V., & Kisely, S. (2020). The use of mechanical restraint in Pacific Rim countries: An international epidemiological study. Epidemiology & Psychiatric Sciences, 29, e190. doi: 10.1017/S2045796020001031
Bhagavan, C., Kung, S., Doppen, M., John, M., Vakalalabure, I., Oldfield, K., Braithwaite, I., & Newton-Howes, G. (2020). Cannabinoids in the treatment of insomnia disorder: A systematic review and meta-analysis. CNS Drugs, 34, 1217-1228. doi: 10.1007/s40263-020-00773-x
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
Newton-Howes, G., Cunningham, R., & Atkinson, J. (2020). Personality disorder prevalence and correlates in a whole of nation dataset. Social Psychiatry & Psychiatric Epidemiology, 56(4), 679-685. doi: 10.1007/s00127-020-01876-y
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
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
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
Journal - Research Other
Newton-Howes, G. (2020). Is the problem bioethics versus law or the principles of doctors. AJOB Neuroscience, 11(1), 28-31. doi: 10.1080/21507740.2019.1704919
Newton-Howes, G., & Gordon, S. (2020). Who controls your future: The convention on the rights of persons with disabilities from a service user focused perspective. Australian & New Zealand Journal of Psychiatry, 54(2), 134-137. doi: 10.1177/0004867419893443
2019
Journal - Research Article
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
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. (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., 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
Journal - Research Other
Braithwaite, I., Newton-Howes, G., Oldfield, K., & Semprini, A. (2019). Cannabis-based medicinal products and the role of the doctor: Should we be cautious or cautiously optimistic? New Zealand Medical Journal, 132(1500), 82-88. Retrieved from https://www.nzma.org.nz/journal
Conference Contribution - Published proceedings: Abstract
Braithwaite, I., Newton-Howes, G., Oldfield, K., & Semprini, A. (2019). Cannabis-based medicinal products and the role of the doctor: Should we be cautious or cautiously optimistic? Proceedings of the Academic General Practice & Primary Care Research Symposium. (pp. 4). Hamilton, New Zealand: University of Waikato. Retrieved from https://www.otago.ac.nz/wellington/otago730914.pdf
Pickering, N., Newton-Howes, G., & Young, G. (2019). Cautious paternalism in psychiatric ethics. Proceedings of the Australasian Association of Bioethics and Health Law (AABHL) and New Zealand Bioethics (NZB) Joint Conference. (pp. 61). Retrieved from http://aabhlnzb2019.w.events4you.currinda.com/
Newton-Howes, G., & Gordon, S. (2019). From substitute decision making to supported decision making in psychiatry. Proceedings of the Australasian Association of Bioethics and Health Law (AABHL) and New Zealand Bioethics (NZB) Joint Conference. (pp. 56-57). Retrieved from http://aabhlnzb2019.w.events4you.currinda.com/
Conference Contribution - Verbal presentation and other Conference outputs
Newton-Howes, G. (2019, October). Fixing the Mental Health Act: Well, with a focus on Community Treatment Orders. Verbal presentation at the Otago Spotlight Series: Mental Health Research, Wellington, New Zealand.
Gordon, S., & Newton-Howes, G. (2019, November). From substitute decision making to supported decision making in psychiatry. Verbal presentation at the 9th Service User Academia Symposium, Wellington, New Zealand.
Kininmonth, L., Gordon, S., Newton-Howes, G., & Purdie, G. (2019, November). Anti-discrimination education intervention delivered to final-year medical students as part of psychological medicine curriculum: Comparative analysis of two alternative programs. Verbal presentation at the 9th Service User Academia Symposium, Wellington, New Zealand.
2018
Journal - Research Article
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
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
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
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
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
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
Journal - Research Other
Newton-Howes, G., Foulds, J., & McBride, S. (2018). Cannabis and the primary care physician. Clinical Focus Primary Care, 12(2), 84-91. [Review].
Newton-Howes, G. (2018). The challenges of 'medical cannabis' and mental health: A clinical perspective. British Journal of Clinical Pharmacology, 84(11), 2499-2501. doi: 10.1111/bcp.13687
Simonsen, E., & Newton-Howes, G. (2018). Personality pathology and schizophrenia. Schizophrenia Bulletin, 44(6), 1180-1184. doi: 10.1093/schbul/sby053
Newton-Howes, G., & Foulds, J. (2018). Personality disorder and alcohol use disorder: An overview. Psychopathology, 51(2), 130-136. doi: 10.1159/000486602
Newton-Howes, G. (2018). Risk in mental health: A review on and of the psychiatrist. Journal of Mental Health Training, Education & Practice, 13(1), 14-21. doi: 10.1108/JMHTEP-04-2017-0030
Newton-Howes, G., & Foulds, J. (2018). Personality disorder and treatment outcome in alcohol use disorder. Current Opinion in Psychiatry, 31(1), 50-56. doi: 10.1097/yco.0000000000000375
Conference Contribution - Published proceedings: Abstract
Boden, J. M., Cook, S., Martin, G., & Newton-Howes, G. (2018). Alcohol use in the Christchurch health and development study cohort. Drug & Alcohol Review, 37(Suppl. 3), (pp. S20). doi: 10.1111/dar.12862
Newton-Howes, G. (2018). The influence of personality in those with an alcohol problem: Do we need to care, what do we do? Australian & New Zealand Journal of Psychiatry, 52(Suppl. 1), (pp. 65-66). doi: 10.1177/0004867418764980
Newton-Howes, G. (2018). Elements of the need for capacity in detention assessments and the requirements of the United Nations Convention on Rights of Persons with Disabilities. Australian & New Zealand Journal of Psychiatry, 52(Suppl. 1), (pp. 23-24). doi: 10.1177/0004867418764980
Menkes, D., Grundy, Q., Every-Palmer, S., Bates, A., Parry, P., Battersby, M., Monasterio, E., Rae, A., … Glue, P., & Newton-Howes, G. (2018). Benefits, harms and ethical implications of sponsored education in psychiatry. Australian & New Zealand Journal of Psychiatry, 52(Suppl. 1), (pp. 52-53). doi: 10.1177/0004867418764980
Lappin, J., Arunogiri, S., Foulds, J., & Newton-Howes, G. (2018). Its a drug and alcohol problem, not a mental health problem: Reflections on treatment pathways for co-occurring disorders. Australian & New Zealand Journal of Psychiatry, 52(Suppl. 1), (pp. 64). doi: 10.1177/0004867418764980
Malhi, G., Bhui, K., Brakoulias, V., Purdy, S., & Newton-Howes, G. (2018). How to write a paper and get it accepted [Panel discussion]. Australian & New Zealand Journal of Psychiatry, 52(Suppl. 1), (pp. 161). doi: 10.1177/0004867418769823
Hopkins, J., Fisher, M., Young, G., & Newton-Howes, G. (2018). Capacity and consent: Two sides of the same coin? Clinical, legislative and human rights perspectives on capacity assessment. Australian & New Zealand Journal of Psychiatry, 52(Suppl. 1), (pp. 22). doi: 10.1177/0004867418764980
Gordon, S., & Newton-Howes, G. (2018). The Convention on the Rights of Persons with Disabilities, legal coercion and mental health. Australian & New Zealand Journal of Psychiatry, 52(Suppl. 1), (pp. 98). doi: 10.1177/0004867418764980
Awarded Doctoral Degree
Newton-Howes, P. A. G. (2018). The issues and impact of personality on mental state disorder: A mixed methods study (PhD). University of Otago, Dunedin, New Zealand. Retrieved from http://hdl.handle.net/10523/7932
2017
Journal - Research Article
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.
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
Foulds, J. A., Boden, J. M., Newton-Howes, G., 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
Newton-Howes, G., 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
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
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
Journal - Research Other
Mulder, R. T., Newton-Howes, G., & Cold, J. (2017). The red corner: In support of formal risk prediction in psychiatry: Author's reply. British Journal of Psychiatry, 210(5), 369-370. doi: 10.1192/bjp.210.5.369b
Newton-Howes, G. (2017). Cannabis as medicine. BMJ, 357, j2130. doi: 10.1136/bmj.j2130
Newton-Howes, G., & Ryan, C. J. (2017). The use of community treatment orders in competent patients is not justified. British Journal of Psychiatry, 210(5), 311-312. doi: 10.1192/bjp.bp.116.193920
Newton-Howes, G., & Gordon, S. (2017). The recovery paradigm and distress conceptualized as personality disorder: Lack of evidence does not equate to a lack of importance. Personality & Mental Health, 11(1), 33-36. doi: 10.1002/pmh.1364
Journal - Professional & Other Non-Research Articles
Ryan, C. J., & Newton-Howes, G. (2017). [Authors' reply to the letter Community treatment orders and capacity to consent]. British Journal of Psychiatry, 211(2), 119-120. doi: 10.1192/bjp.211.2.119
Every-Palmer, S., Newton-Howes, G., & Clarke, M. J. (2017). Pharmacological treatment for antipsychotic-related constipation. Schizophrenia Bulletin, 43(3), 490-492. doi: 10.1093/schbul/sbx011
Conference Contribution - Published proceedings: Abstract
Bates, A., Newton-Howes, G., & O'Connor, S. (2017). Researching if interventions work: Using all our knowledge and skills. Proceedings of the 7th Service User Academia Symposium. (pp. 18). Retrieved from http://www.otago.ac.nz/wellington/departments/psychologicalmedicine/suas/
Newton-Howes, G., & Gordon, S. (2017). When at an impasse with co-production: Press on for consensus or proceed with divergent views? Proceedings of the 7th Service User Academia Symposium. (pp. 14-15). Retrieved from http://www.otago.ac.nz/wellington/departments/psychologicalmedicine/suas/
Newton-Howes, G. (2017). Professionalism and communication: Two cases of 'doctor' versus 'judge'. Australian & New Zealand Journal of Psychiatry, 51(Suppl. 1), (pp. 139). doi: 10.1177/0004867417702054
Ryan, C., Newton-Howes, G., & Brophy, L. (2017). Community treatment orders are largely ineffective and their use should be dramatically scaled back: Yes [Debate]. Australian & New Zealand Journal of Psychiatry, 51(Suppl. 1), (pp. 57). [Abstract]
Conference Contribution - Verbal presentation and other Conference outputs
Newton-Howes, G. (2017, January). Trust and communication: Different professionals, different perspectives. Verbal presentation at the New Zealand Bioethics Conference: Bioethics and Health Law in the Information Age, Dunedin, New Zealand.
2016
Journal - Research Article
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
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
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
Journal - Research Other
Newton-Howes, G., & McBride, S. (2016). Medicinal cannabis: Moving the debate forward. New Zealand Medical Journal, 129(1445), 103-109. Retrieved from http://www.nzma.org.nz/journal
Mulder, R., Newton-Howes, G., & Coid, J. W. (2016). The futility of risk prediction in psychiatry. British Journal of Psychiatry, 209(4), 271-272. doi: 10.1192/bjp.bp.116.184960
Newton-Howes, G., & McBride, S. (2016). Cannabis in New Zealand: Smoking gun of medicalised smokescreen? New Zealand Medical Journal, 129(1433), 13-16. Retrieved from http://www.nzma.org.nz/journal
Conference Contribution - Published proceedings: Abstract
Callaghan, S., & Newton-Howes, G. (2016). Has the time come to abandon coercive community treatment in mental health? Proceedings of the Australasian Association of Bioethics and Health Law (AABHL) Conference. Retrieved from https://aabhl.org/
Conference Contribution - Verbal presentation and other Conference outputs
Gordon, S., Ellis, P., Huthwaite, M., & Newton-Howes, G. (2016, October). The road to recovering, rebuilding, regenerating psychiatric education. Verbal presentation at the Royal Australian & New Zealand College of Psychiatrists New Zealand Conference: Recover, Rebuild, Regenerate, Christchurch, New Zealand.
2015
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.
Journal - Research Article
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., & 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
Journal - Research Other
Newton-Howes, G., Mulder, R., & Tyrer, P. (2015). Diagnostic neglect: The potential impact of losing a separate axis for personality disorder. British Journal of Psychiatry, 206(5), 355-356. doi: 10.1192/bjp.bp.114.155259
Conference Contribution - Published proceedings: Abstract
Newton-Howes, G., Levack, W., Tester, R., Gilmour, M., & McBride, S. (2015). Non-physiological mechanisms influencing disulfiram treatment for alcohol use disorder: A grounded theory study. Proceedings of the 6th Addiction Research Symposium. Retrieved from http://www.matuaraki.org.nz/resources/presentations-from-the-6th-addiction-research-symposium/643
Conference Contribution - Verbal presentation and other Conference outputs
Gordon, S., & Newton-Howes, G. (2015, November). You are required to reach a passing standard in recovery to pass the psychological medicine attachment overall. Plenary presentation at the Service User Academia Symposium, Auckaland, New Zealand.
Newton-Howes, G., & Boden, J. (2015, September). Initiation of drinking and later mental state and addictions outcomes: Findings from the Christchurch Health and Development Study. Verbal presentation at the Royal Australian & New Zealand College of Psychiatrists New Zealand Conference, Hamilton, New Zealand.
2014
Journal - Research Article
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., & 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. (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
Journal - Research Other
Every-Palmer, S., Newton-Howes, G., & Clarke, M. J. (2014). Pharmacological treatment for antipsychotic-related constipation (Protocol). Cochrane Database of Systematic Reviews, (5), CD011128. doi: 10.1002/14651858.CD011128
Conference Contribution - Verbal presentation and other Conference outputs
Newton-Howes, G. (2014, December). How does personality improve recovery? A systematic review of the evidence. Verbal presentation at the Service User Academia Symposium, Wellington, New Zealand.
Newton-Howes, G. (2014, October). Do judges and doctors consider the application of Community Treatment Orders similarly? Verbal presentation at the Royal Australian and New Zealand College of Psychiatrists (RANZCP) New Zealand Conference: Deep South Psychiatry, Dunedin, New Zealand.
Newton-Howes, G., Clark, L. A., & Chanen, A. (2014, October). Personality disorder across the life course: Stability and change. Verbal presentation at the Royal Australian and New Zealand College of Psychiatrists (RANZCP) New Zealand Conference: Deep South Psychiatry, Dunedin, New Zealand.
2013
Journal - Research Article
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
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., & 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
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
Conference Contribution - Published proceedings: Abstract
Newton-Howes, G. (2013). The contribution of mental state disorder and personality to social dysfunction in psychiatric patients. Proceedings of the XIII International Society for the Study of Personality Disorders (ISSPD) International Congress: Bridging Personality and Psychopathology: The Person Behind the Illness. Retrieved from http://www.isspd2013.com/scientific.html
Newton-Howes, G. (2013). Personality disorder and the recovery from depression. Proceedings of the XIII International Society for the Study of Personality Disorders (ISSPD) International Congress: Bridging Personality and Psychopathology: The Person Behind the Illness. Retrieved from http://www.isspd2013.com/scientific.html
2012
Journal - Research Article
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
2011
Journal - Research Article
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
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
2010
Journal - Research Article
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
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.
Journal - Research Other
Newton-Howes, G. (2010). Coercion in psychiatric care: Where are we now, what do we know, where do we go? [Editorial]. Psychiatrist, 34(6), 217-220. doi: 10.1192/pb.bp.109.027391
2009
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.
Journal - Research Other
Newton-Howes, G. (2009). The low down: Clinical response complicated by tonic–clonic seizures on low-dose clozapine [Correspondence]. Australian & New Zealand Journal of Psychiatry, 43, 979-980. doi: 10.1080/00048670903179186
Malone, D., Marriott, S., Newton-Howes, G., Simmonds, S., & Tyrer, P. (2009). Community mental health teams for people with severe mental illnesses and disordered personality [Special feature]. Schizophrenia Bulletin, 35(1), 13-14. doi: 10.1093/schbul/sbn164
2008
Journal - Research Article
Newton-Howes, G. (2008). The influence of personality disorders on the outcome of depression. Psychiatry (Abingdon), 7(3), 105-108. doi: 10.1016/j.mppsy.2008.01.006
Newton-Howes, G., Weaver, T., & Tyrer, P. (2008). Attitudes of staff towards patients with personality disorder in community mental health teams. Australian & New Zealand Journal of Psychiatry, 42, 572-577. doi: 10.1080/00048670802119739
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
2007
Journal - Research Article
Malone, D., Marriott, S., Newton-Howes, G., Simmonds, S., & Tyrer, P. (2007). Community mental health teams (CMHTs) for people with severe mental illnesses and disordered personality (Review). Cochrane Database of Systematic Reviews, 3, CD000270. doi: 10.1002/14651858.CD000270.pub2
Newton-Howes, G., Tyrer, P., Moore, A., & Nur, U. (2007). Personality disorder and outcome in schizophrenia: A negative systematic review. Personality & Mental Health, 1(1), 21-26. doi: 10.1002/pmh.6
Journal - Research Other
Newton-Howes, G. (2007). The impact of personality and personality disorders on the treatment of depression by Gabbard and Simonsen [Commentary]. Personality & Mental Health, 1(2), 179-180. doi: 10.1002/pmh
2006
Chapter in Book - Research
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.
Journal - Research Article
Newton-Howes, G., Tyrer, P., & Johnson, T. (2006). Personality disorder and the outcome of depression: Meta-analysis of published studies. British Journal of Psychiatry, 188, 13-20. doi: 10.1192/bjp.188.1.13
2005
Journal - Research Article
Tyrer, P., & Newton-Howes, G. (2005). Rational drug treatment for personality disorders. Psychiatry (Abingdon), 4(3), 11-14.
2004
Journal - Research Article
Newton-Howes, G. (2004). What happens when children with attention deficit/hyperactivity disorder grow up? Journal of the Royal Society of Medicine, 97, 531-535.
2003
Journal - Research Article
Newton-Howes, G., & Tyrer, P. (2003). Pharmacotherapy for personality disorders. Expert Opinion on Pharmacotherapy, 4(10), 1643-1649. doi: 10.1517/14656566.4.10.1643
1998
Journal - Research Article
Newton-Howes, P. A. G., Bedford, N. D., Dobbs, B. R., & Frizelle, F. A. (1998). Informed consent: What do patients want to know? New Zealand Medical Journal, 111, 340-342.
Conference Contribution - Published proceedings: Abstract
Frizelle, F. A., Newton-Howes, G., & Bedford, N. (1998). Informed consent: What is it patients want to know? Australian & New Zealand Journal of Surgery, 68(Suppl.), (pp. A76). [Abstract]