Tom Schweizer

PhD, Fellowship

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. Hird, MA, Vesely, KA, Fischer, CE, Graham, SJ, Naglie, G, Schweizer, TA et al.. Investigating Simulated Driving Errors in Amnestic Single- and Multiple-Domain Mild Cognitive Impairment. J. Alzheimers Dis. 2017;56 (2):447-452. doi: 10.3233/JAD-160995. PubMed PMID:27983557 .
  2. Sennik, S, Schweizer, TA, Fischer, CE, Munoz, DG. Risk Factors and Pathological Substrates Associated with Agitation/Aggression in Alzheimer's Disease: A Preliminary Study using NACC Data. J. Alzheimers Dis. 2017;55 (4):1519-1528. doi: 10.3233/JAD-160780. PubMed PMID:27911311 .
  3. Churchill, N, Hutchison, MG, Leung, G, Graham, S, Schweizer, TA. Changes in functional connectivity of the brain associated with a history of sport concussion: A preliminary investigation. Brain Inj. 2017;31 (1):39-48. doi: 10.1080/02699052.2016.1221135. PubMed PMID:27901587 .
  4. Ismail, Z, Elbayoumi, H, Fischer, CE, Hogan, DB, Millikin, CP, Schweizer, T et al.. Prevalence of Depression in Patients With Mild Cognitive Impairment: A Systematic Review and Meta-analysis. JAMA Psychiatry. 2017;74 (1):58-67. doi: 10.1001/jamapsychiatry.2016.3162. PubMed PMID:27893026 .
  5. Alotaibi, NM, Samuel, N, Wang, J, Ahuja, CS, Guha, D, Ibrahim, GM et al.. The Use of Social Media Communications in Brain Aneurysms and Subarachnoid Hemorrhage: A Mixed-Method Analysis. World Neurosurg. 2016; :. doi: 10.1016/j.wneu.2016.11.085. PubMed PMID:27890750 .
  6. Chan, V, Sahgal, A, Egeto, P, Schweizer, T, Das, S. Incidence of seizure in adult patients with intracranial metastatic disease. J. Neurooncol. 2016; :. doi: 10.1007/s11060-016-2335-2. PubMed PMID:27878505 .
  7. Morrison, MA, Tam, F, Garavaglia, MM, Hare, GM, Cusimano, MD, Schweizer, TA et al.. Sources of Variation Influencing Concordance between Functional MRI and Direct Cortical Stimulation in Brain Tumor Surgery. Front Neurosci. 2016;10 :461. doi: 10.3389/fnins.2016.00461. PubMed PMID:27803645 PubMed Central PMC5067437.
  8. Kim, J, Schweizer, TA, Fischer, CE, Munoz, DG. The Role of Cerebrovascular Disease on Cognitive and Functional Status and Psychosis in Severe Alzheimer's Disease. J. Alzheimers Dis. 2017;55 (1):381-389. doi: 10.3233/JAD-160506. PubMed PMID:27662301 PubMed Central PMC5115606.
  9. Aldakkan, A, Mansouri, A, Jaja, BN, Alotaibi, NM, Macdonald, RL, Subarachnoid Hemorrhage International Trialists Collaborators et al.. Predictors of Delayed Cerebral Ischemia in Patients with Aneurysmal Subarachnoid Hemorrhage with Asymptomatic Angiographic Vasospasm on Admission. World Neurosurg. 2017;97 :199-204. doi: 10.1016/j.wneu.2016.09.096. PubMed PMID:27717776 .
  10. de Oliveira Manoel, AL, Mansur, A, Silva, GS, Germans, MR, Jaja, BN, Kouzmina, E et al.. Functional Outcome After Poor-Grade Subarachnoid Hemorrhage: A Single-Center Study and Systematic Literature Review. Neurocrit Care. 2016;25 (3):338-350. doi: 10.1007/s12028-016-0305-3. PubMed PMID:27651379 .
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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