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Contact Details

Department of Medicine (Christchurch)
Research summary
Movement Disorders and Brain Research


I am the Clinical Director of the NZ Brain Research Institute. I am a Neurologist, with subspecialty expertise in Movement Disorders including Parkinson’s, Huntington’s disease and botulinum toxin therapy.

My research interests and expertise are:

  • establishing biomarkers of cognitive decline to mild cognitive impairment (MCI) and dementia, particularly advanced MRI markers in Parkinson’s disease but also other dementias;
  • eye movements in PD and other neurological disorders, in collaboration with Dr M MacAskill,
  • clinical biomarkers of progression in Huntington’s disease, and
  • speech and swallowing disorders in health and neurological disorders.
I regularly conduct clinical pharmaceutical trials in Parkinson’s and other neurological disorders This has enabled patients not only to have early access to new treatments but also and regular clinical review and oversight.


Kim, J. J., Vitale, D., Otani, D. V., Lian, M. M., Heilbron, K., the 23andMe Research Team, … the Global Parkinson's Genetic Program (GP2), including Anderson, T. J., Pitcher, T. L., … Mata, I. (2024). Multi-ancestry genome-wide association meta-analysis of Parkinson’s disease. Nature Genetics, 56, 27-36. doi: 10.1038/s41588-023-01584-8 Journal - Research Article

Kerestes, R., Laansma, M. A., Owens-Walton, C., Perry, A., van Heese, E. M., Al-Bachari, S., Anderson, T. J., … Dalrymple-Alford, J. C., … Melzer, T. R., … Pitcher, T. L., … and the ENIGMA-Parkinson's Study. (2023). Cerebellar volume and disease staging in Parkinson's disease: An ENIGMA-PD study. Movement Disorders. Advance online publication. doi: 10.1002/mds.29611 Journal - Research Article

Towns, C., Richer, M., Jasaityte, S., Stafford, E. J., Joubert, J., Antar, T., … and the the Global Parkinson's Genetic Program (GP2), including Anderson, T. J., & Pitcher, T. L. (2023). Defining the causes of sporadic Parkinson’s disease in the global Parkinson’s genetics program (GP2) [Brief communication]. npj Parkinson's Disease, 9, 131. doi: 10.1038/s41531-023-00533-w Journal - Research Other

Lange, L. M., Avenali, M., Ellis, M., Illarionova, A., Keller Sarmiento, I. J., Tan, A.-H., … the Global Parkinson's Genetic Program (GP2), including Anderson, T. J., & Pitcher, T. L. (2023). Elucidating causative gene variants in hereditary Parkinson’s disease in the Global Parkinson’s Genetics Program (GP2) [Brief communication]. npj Parkinson's Disease, 9, 100. doi: 10.1038/s41531-023-00526-9 Journal - Research Other

Chaffey, T., Roberts, R., Morgan, C., Melzer, T., Kirk, I., Dalrymple-Alford, J., Cutfield, N., Anderson, T., … New Zealand-Dementia Prevention Research Clinics. (2023). The relationship between cortical thinning, grey matter atrophy, and cognitive performance in mild cognitive impairment. In K.-L. Horne (Ed.), Proceedings of the 39th International Australasian Winter Conference on Brain Research (AWCBR). (pp. 72). Retrieved from Conference Contribution - Published proceedings: Abstract

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