Roger Dixon, PhD

Professor, Faculty of Science - Psychology Science

Contact Overview Publications

Contact

Professor, Faculty of Science - Psychology Science

Email: rdixon@ualberta.ca
Phone: (780) 492-5850
Address: P-579 Bio Science - Psychology Wing
11355 - Saskatchewan Drive

Edmonton AB

T6G 2E9

Overview

Area of Study / Keywords

Brain and Cognitive Aging; Alzheimer's and Neurodegenerative Diseases; Longitudinal Designs and Analytics; Omics Biomarkers; AI and Machine Learning

Research

Longitudinal and Epidemiological Research in Resilient, Normal, Impaired, and Neurodegenerative Aging

Applications of Artificial Intelligence, Neuro-informatics, Machine Learning, and Other Quantitative Modeling Technologies

Interactions among Genetic, Biological, Metabolic, Health, Functional, and Lifestyle Influences in Brain/Cognitive Aging and Neurodegenerative Disease

Alzheimer's Disease and Related Dementias

Biomarkers and Risk/Protective Factors Predicting Differential Trajectories, Transitions, and Outcomes of Neurocognitive Aging

Teaching

PSYC 403 and PSYC 505: Characteristics and Transitions in Normal Aging, Cognitive Impairment and Alzheimer's Disease

Featured Publications

Associated risk and resilience factors of Alzheimer’s disease in women with early bilateral oophorectomy: Data from the UK Biobank.

Calvo, N., McFall, G.P., Ramana, S., Galper, M., Fuller-Thomsen, E., Dixon, R.A., & Einstein, G.E.

Journal of Alzheimer's Disease.. 2024 December; 102 (1):119-128

Gender selectively mediates the association between sex and memory in cognitively normal older adults.

Bohn, L., Han, A.Y., McFall, G.P., Drouin, S.M., Pettersen, J.A., Einstein, G., Rajah, M.N., Anstey, K.J., & Dixon, R.A.

Innovation in Aging.. 2024 November; 8 (11):igae0894

Cognitive speed in neurodegenerative disease: Comparing mean rate and inconsistency within and across the Alzheimer's and Lewy Body Spectra in the COMPASS-ND study.

Caballero, H.S., McFall, G.P., Gee, M., MacDonald, S., Phillips, N., Fogarty, J., Montero-Odasso, M., Camicioli, R., & Dixon, R.A.

Journal of Alzheimer's Disease.. 2024 November; 100 (2):579-601

Association of plasma biomarkers with cognition, cognitive decline, and daily function across and within neurodegenerative diseases: Results from the Ontario Neurodegenerative Disease Research Initiative.

Sanchez, E., ... Black, S.E., Borrie, M., Dilliott, A.A., Dixon, R.A., ... Kvartsberg, H., Zetterberg, H., Munoz, D.P., the ONDRI Investigators, & Masellis, M.

Alzheimer's & Dementia. 2024 March; 20 (3):1753-1770

Machine learning analyses identify frailty-related morbidities that discriminate four cohorts in the Alzheimer's disease spectrum: A COMPASS-ND study.

Bohn, L., Drouin, S.M., McFall, G.P., Rolfson, D.B., Andrew, M.K., & Dixon, R.A.

BMC Geriatrics . 2023 October; 23 (Article 837):1-20

Identifying key multi-modal predictors of incipient dementia in Parkinson's disease: A machine learning analysis and Tree SHAP interpretation.

McFall, G.P., Bohn, L., Drouin, S.M., Gee, M., Fah, H., Han, W., Li, L., Camicioli, R., & Dixon, R.A.

Frontiers in Aging Neuroscience. 2023 July; 15 (Article 1124232):1-25

Gender specific factors contributing to cognitive resilience in APOE ɛ4 positive older adults in a population-based sample.

Zheng, L., Eramudugolla, R., Cherbuin, N., Drouin, S.M., Dixon, R.A., & Anstey, K.J.

Scientific Reports . 2023 May; 13 (8037):1-15

Dementia risk prediction in a longitudinal geriatric Parkinson’s disease cohort: Evaluation and application of the Montréal Parkinson Risk of Dementia Scale.

Bohn, L., McFall, G.P., Gee, M., Postuma, R.B., Dixon, R.A., & Camicioli, R.

Canadian Geriatrics Journal. 2023 January; 26 (1):176-186

Bridging Integrator 1 (BIN1, rs6733839) and sex are moderators of vascular health predictions of memory aging trajectories.

Heal, M., McFall, G.P., Vergote, D., Jhamandas, J.H., Westaway, D., & Dixon, R.A.

Journal of Alzheimer's Disease. 2022 February; 89 (2):265-281

Data-driven analyses of longitudinal hippocampal imaging trajectories: Discrimination and biomarker prediction of change classes.

Drouin, S.M., McFall, G.P., Potvin, O., Bellec, P., Masellis, M., Duchesne, S., & Dixon, R.A. for the Alzheimer’s Disease Neuroimaging Initiative

Journal of Alzheimer's Disease . 2022 January; 88 (1):97-115

Comprehensive serum lipidomics for detecting incipient dementia in Parkinson's disease.

Buzatto, A.Z., Tatlay, J., Bajwa, B., Mung, D., Camicioli, R., Dixon, R.A., & Li, L.

Journal of Proteome Research. 2021 July;

Association of sex differences in dementia risk factors with sex differences in memory decline in a population-based cohort spanning 20-76 years.

Anstey, K.J., Peters, R., Mortby, M., Kiely, K.M., Eramudugolla, R., Cherbuin, N., Huque, H., & Dixon, R.A.

Scientific Reports. 2021 May; 11

Integrating three characteristics of executive function in non-demented aging: Trajectories, classification, and biomarker predictors.

Caballero, H.S., McFall, G.P., Wiebe, S., & Dixon, R.A.

Journal of the International Neuropsychological Society. 2021 March; 27 (2):158-171

Portals to frailty? Data-driven analyses detect early frailty profiles.

Bohn, L., Zheng, Y., McFall, G.P., & Dixon, R.A.

Alzheimer's Research & Therapy. 2021 March; 13 (1)

In multiple facets of Subjective Memory Decline, sex moderates memory predictions.

Drouin, S.M., McFall, G.P., & Dixon, R.A.

Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring. 2020 July; 12 (1):e12089

A multiomics approach to heterogeneity in Alzheimer's disease: Focused review and roadmap.

Badhwar, A., McFall, G.P., Sapkota, S., Black, S., Chertkow, H., Duchesne, S., Masellis, M., Li, L., Dixon, R.A., & Bellec, P.

Brain. 2020 May; 143 (5):1315-1331

Future directions for dementia and prevention research: An International Research Network on Dementia Prevention consensus.

Anstey, K.J., Peters, R., Zheng, L., Barnes, D.E., Brayne, C., Brodaty, H., Chalmers, J., Clare, L., Dixon, R.A., Dodge, H., Lautenschlager, N., Middleton, L., Qiu, C., Rees, G., Sahar, S., & Yaffe, K.

Journal of Alzheimer's Disease. 2020 January; 78 doi:10.3233/JAD-200674 (1):3-12