Tom Schweizer


Interim Director of Keenan Research Centre for Biomedical Sciences & Director, Neuroscience Research Program


Dr. Schweizer’s area of interest is in Cognitive Neuroscience and Neuroimaging, focusing on understanding the neural bases for human cognitive and real-world functioning using experimental cognitive paradigms, neuroimaging and neuropsychology. A better understanding of the complex neural systems supporting various cognitive and real-world functions and their breakdown after brain damage (e.g. Stroke, Traumatic Brain Injury, Alzheimer’s Disease) is essential in educating physicians, patients and families and critical in designing effective treatment strategies. Dr. Schweizer and his team have developed a novel and fully immersive driving simulator and touch tablet placed in a 3.0 Tesla functional magnetic resonance imaging (fMRI) system. The MRI compatible equipment can capture brain activity during real world tasks. Dr. Schweizer and his group are also investigating novel approaches to image processing and data analysis in functional neuroimaging, in order to improve the reliability and interpretability of fMRI findings, particularly in clinical and aging populations. Dr. Schweizer is an Ontario Early Researcher Award holder and is supported by a New Investigator Award from the Heart and Stroke Foundation of Canada and research awards from the Ministry of Transportation Ontario and other National peer-reviewed funding agencies including Canadian Institutes for Health Research.

Recent Publications

  1. Ledger, C, Karameh, WK, Munoz, DG, Fischer, CE, Schweizer, TA. Gender role in sleep disturbances among older adults with traumatic brain injury. Int Rev Psychiatry. 2019; :1-7. doi: 10.1080/09540261.2019.1657384. PubMed PMID:31544552 .
  2. Maknojia, S, Churchill, NW, Schweizer, TA, Graham, SJ. Resting State fMRI: Going Through the Motions. Front Neurosci. 2019;13 :825. doi: 10.3389/fnins.2019.00825. PubMed PMID:31456656 PubMed Central PMC6700228.
  3. Dijkland, SA, Jaja, BNR, van der Jagt, M, Roozenbeek, B, Vergouwen, MDI, Suarez, JI et al.. Between-center and between-country differences in outcome after aneurysmal subarachnoid hemorrhage in the Subarachnoid Hemorrhage International Trialists (SAHIT) repository. J. Neurosurg. 2019; :1-9. doi: 10.3171/2019.5.JNS19483. PubMed PMID:31443072 .
  4. Showraki, A, Murari, G, Ismail, Z, Barfett, JJ, Fornazzari, L, Munoz, DG et al.. Cerebrospinal Fluid Correlates of Neuropsychiatric Symptoms in Patients with Alzheimer's Disease/Mild Cognitive Impairment: A Systematic Review. J. Alzheimers Dis. 2019;71 (2):477-501. doi: 10.3233/JAD-190365. PubMed PMID:31424398 .
  5. Maknojia, S, Tam, F, Das, S, Schweizer, T, Graham, SJ. Visualization of Brain Shift Corrected Functional Magnetic Resonance Imaging Data for Intraoperative Brain Mapping. World Neurosurg X. 2019;2 :100021. doi: 10.1016/j.wnsx.2019.100021. PubMed PMID:31218295 PubMed Central PMC6580887.
  6. Chou, SH, Macdonald, RL, Keller, E, Unruptured Intracranial Aneurysms and SAH CDE Project Investigators. Biospecimens and Molecular and Cellular Biomarkers in Aneurysmal Subarachnoid Hemorrhage Studies: Common Data Elements and Standard Reporting Recommendations. Neurocrit Care. 2019;30 (Suppl 1):46-59. doi: 10.1007/s12028-019-00725-4. PubMed PMID:31144274 .
  7. Qian, W, Fischer, CE, Churchill, NW, Kumar, S, Rajji, T, Schweizer, TA et al.. Delusions in Alzheimer Disease are Associated With Decreased Default Mode Network Functional Connectivity. Am J Geriatr Psychiatry. 2019;27 (10):1060-1068. doi: 10.1016/j.jagp.2019.03.020. PubMed PMID:31130416 .
  8. Stienen, MN, Visser-Meily, JM, Schweizer, TA, Hänggi, D, Macdonald, RL, Vergouwen, MDI et al.. Prioritization and Timing of Outcomes and Endpoints After Aneurysmal Subarachnoid Hemorrhage in Clinical Trials and Observational Studies: Proposal of a Multidisciplinary Research Group. Neurocrit Care. 2019;30 (Suppl 1):102-113. doi: 10.1007/s12028-019-00737-0. PubMed PMID:31123994 .
  9. de Oliveira Manoel, AL, van der Jagt, M, Amin-Hanjani, S, Bambakidis, NC, Brophy, GM, Bulsara, K et al.. Common Data Elements for Unruptured Intracranial Aneurysms and Aneurysmal Subarachnoid Hemorrhage: Recommendations from the Working Group on Hospital Course and Acute Therapies-Proposal of a Multidisciplinary Research Group. Neurocrit Care. 2019;30 (Suppl 1):36-45. doi: 10.1007/s12028-019-00726-3. PubMed PMID:31119687 .
  10. Hackenberg, KAM, Etminan, N, Wintermark, M, Meyers, PM, Lanzino, G, Rüfenacht, D et al.. Common Data Elements for Radiological Imaging of Patients with Subarachnoid Hemorrhage: Proposal of a Multidisciplinary Research Group. Neurocrit Care. 2019;30 (Suppl 1):60-78. doi: 10.1007/s12028-019-00728-1. PubMed PMID:31115823 .
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Affiliations & Other Activities

  • Scientist, Keenan Research Centre for Biomedical Science, St. Michael’s Hospital
  • Associate Professor, Faculty of Medicine (Neurosurgery), University of Toronto
  • Associate Professor, Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto