Sophie Grenfell

BSc, MSc (1st class Hons)

Assistant Research Fellow

New Zealand Brain Research Institute, Christchurch

Phone: 03 928 1425

Publications

Provided on request for non-commercial personal use by researchers.

2024

Download Early‐phase amyloid PET reproduces metabolic signatures of cognitive decline in Parkinson's disease.
Aye, W. W., Stark, M. R., Horne, K.-L., Livingston, L., Grenfell, S., Myall, D. J., Pitcher, T.L., Almuqbel, M.M., Keenan, R. J., Meissner, W.G., Dalrymple-Alford, J., Anderson, T.J., Le Heron, C., Melzer, T. R. (2024). Early‐phase amyloid PET reproduces metabolic signatures of cognitive decline in Parkinson's disease. Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring, 16(2), e12601.. 10.1002/dad2.12601
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Download Higher Frequency of Stuttered Disfluencies Negatively Affects Communicative Participation in Parkinson's Disease.
Gooch, E., Melzer, T.R., Horne, K.L., Grenfell, S., Livingston, L., Pitcher, T., Dalrymple-Alford, J.C., Anderson, T.J., McAuliffe, M.J., Theys, C. (2024). Higher Frequency of Stuttered Disfluencies Negatively Affects Communicative Participation in Parkinson's Disease. Journal of Speech Language and Hearing Research, 1-12. 10.1044/2024_JSLHR-24-00018
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2023

Download The New Zealand Parkinson’s Progression Programme.
MacAskill, M. R., Pitcher, T. L., Melzer, T. R., Myall, D. J., Horne, K.-L., Shoorangiz, R., Almuqbel, M. M., Livingston, L., Grenfell, S., Pascoe, M. J., Marshall, E. T., Marsh, S., Perry, S. E., Meissner, W. G., Theys, C., Le Heron, C. J., Keenan, R. J., Dalrymple-Alford, J. C., Anderson, T. J. (2023). The New Zealand Parkinson’s Progression Programme. Journal of the Royal Society of New Zealand, 53, 466-488. 10.1080/03036758.2022.2111448
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2022

Download Non-contact hand movement analysis for optimal configuration of smart sensors to capture Parkinson’s disease hand tremor.
Khwaounjoo, P., Singh, G., Grenfell, S., Özsoy, B., MacAskill, M. R., Anderson, T. J., Çakmak, Y. O. (2022). Non-contact hand movement analysis for optimal configuration of smart sensors to capture Parkinson’s disease hand tremor. Sensors, 22, 4613. 10.3390/s22124613
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2021

Download Higher perceived stress and exacerbated motor symptoms in Parkinson's disease during the COVID-19 lockdown in New Zealand.
Blakemore, R. L., Pascoe, M. J., Horne, K. L., Livingston, L., Young, B. N., Elias, B., Goulden, M., Grenfell, S., Myall, D. J., Pitcher, T. L., Dalrymple-Alford, J. C., Le Heron, C. J., Anderson, T. J., MacAskill, M. R. (2021). Higher perceived stress and exacerbated motor symptoms in Parkinson's disease during the COVID-19 lockdown in New Zealand. The New Zealand Medical Journal, 134, 44-51.
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Download Neuropsychiatric symptoms are associated with dementia in Parkinson’s disease but not predictive of it.
Horne, K., MacAskill, M. R., Myall, D. J., Livingston, L., Grenfell, S., Pascoe, M. J., Young, B., Shoorangiz, R., Melzer, T. R., Pitcher, T. L., Anderson, T. J., Dalrymple‐Alford, J. C. (2021). Neuropsychiatric symptoms are associated with dementia in Parkinson’s disease but not predictive of it. Movement Disorders Clinical Practice, 8, 390-399. 10.1002/mdc3.13151
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2019

Download Beta amyloid deposition is not associated with cognitive impairment in Parkinson’s disease.
Melzer, T. R., Stark, M. R., Keenan, R. J., Myall, D. J., MacAskill, M. R., Pitcher, T. L., Livingston, L., Grenfell, S., Horne, K., Young, B., Pascoe, M., Almuqbel, M. A., Wang, J., Marsh, S., Miller, D. H., Dalrymple-Alford, J. C., Anderson, T. J. (2019). Beta amyloid deposition is not associated with cognitive impairment in Parkinson’s disease. Frontiers in Neurology, 10, 391. 10.3389/fneur.2019.00391
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Abstracts and Short papers

2020

Download Neuropsychiatric symptoms are associated with dementia in Parkinson’s disease but not predictive of it.
Horne, K.-L., MacAskill, M. R., Myall, D., Livingston, L., Grenfell, S., Pascoe, M. J., Young, B., Shoorangiz, R., Melzer, T. R., Pitcher, T. L., Anderson, T. J., Dalrymple-Alford, J. C. (2020). Neuropsychiatric symptoms are associated with dementia in Parkinson’s disease but not predictive of it. MedRxiv, 2020, 09, 01, 20186312. https://doi.org/10.1101/2020.09.01.20186312
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2016

Horne, K, Myall, DJ, Livingston, L, Grenfell, SF, Melzer, TR, Pitcher, TL, MacAskill, MR, Anderson, TJ, Dalrymple-Alford, JC (2016). Risk of dementia in Parkinson’s disease: Towards optimal short cognitive testing.  Proceedings of the 34th International Winter Conference on Brain Research, 1.

2013

Grenfell, S., Melzer, T. R., Young, B., Wang, A, Livingston, L., Keenan, R. J., MacAskill, M. R., Anderson, T. J. , Dalrymple-Alford, J.C. (2013). Reduced default mode network connectivity and autobiographical memory in mild cognitive impairment.  Proceedings of the 31st Australasian Winter Conference on Brain Research 2013, Queenstown, Volume 31, Abstract 27.