Corinne E. Fischer



Research Programs


Dr. Fischer is a staff psychiatrist with the Mental Health Service at St. Michael’s Hospital and director of Geriatric Psychiatry at St. Michael’s Hospital, Unity Health. She is an associate scientist and co-director of Neurodegenerative Research, Division of Neuroscience Research, at the Keenan Research Centre for Biomedical Science, the Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Canada. She has an academic appointment as Associate Professor at the University of Toronto in the Division of Geriatric Psychiatry and is a full member of the Institute of Medical Science where she supervises graduate students, research fellows, residents and medical students. She is an associate editor of the Journal of Alzheimer’s disease and immediate past academic co-chair of the Neuropsychiatric Symptom Professional Interest Area ISTAART in addition to being a member of several national/international organizations including CAGP, AAGP, IPA and ISTAART.  Dr. Fischer’s main clinical and research focus centres around neuropsychiatric symptoms in Alzheimer’s disease and their clinical, imaging and pathological correlates. She is a principal investigator for a number of peer-reviewed and industry sponsored grants, including a multi-centred study of photobiomodulation therapy in moderate to severe Alzheimer’s disease.

Recent Publications

  1. Mirjalili, M, Zomorrodi, R, Daskalakis, ZJ, Hill, SL, Kumar, S, Blumberger, DM et al.. Cognitive control, interference inhibition, and ordering of information during working memory in younger and older healthy adults. Geroscience. 2022; :. doi: 10.1007/s11357-022-00577-5. PubMed PMID:35553346 .
  2. Rashidi-Ranjbar, N, Rajji, TK, Hawco, C, Kumar, S, Herrmann, N, Mah, L et al.. Association of functional connectivity of the executive control network or default mode network with cognitive impairment in older adults with remitted major depressive disorder or mild cognitive impairment. Neuropsychopharmacology. 2022; :. doi: 10.1038/s41386-022-01308-2. PubMed PMID:35410366 .
  3. Fischer, CE, Pemonge, MH, Ducoussau, I, Arzelier, A, Rivollat, M, Santos, F et al.. Origin and mobility of Iron Age Gaulish groups in present-day France revealed through archaeogenomics. iScience. 2022;25 (4):104094. doi: 10.1016/j.isci.2022.104094. PubMed PMID:35402880 PubMed Central PMC8983337.
  4. Eikelboom, WS, Pan, M, Ossenkoppele, R, Coesmans, M, Gatchel, JR, Ismail, Z et al.. Sex differences in neuropsychiatric symptoms in Alzheimer's disease dementia: a meta-analysis. Alzheimers Res Ther. 2022;14 (1):48. doi: 10.1186/s13195-022-00991-z. PubMed PMID:35379344 PubMed Central PMC8978393.
  5. Ozzoude, M, Varriano, B, Beaton, D, Ramirez, J, Holmes, MF, Scott, CJM et al.. Investigating the contribution of white matter hyperintensities and cortical thickness to empathy in neurodegenerative and cerebrovascular diseases. Geroscience. 2022; :. doi: 10.1007/s11357-022-00539-x. PubMed PMID:35294697 .
  6. Atayde, AL, Fischer, CE, Schweizer, TA, Munoz, DG. Neuropsychiatric Inventory-Questionnaire Assessed Nighttime Behaviors in Cognitively Asymptomatic Patients with Pathologically Confirmed Alzheimer's Disease Predict More Rapid Cognitive Deterioration. J Alzheimers Dis. 2022;86 (3):1137-1147. doi: 10.3233/JAD-215276. PubMed PMID:35180114 .
  7. Choudhury, S, Ghodasara, S, Stiffel, M, Fischer, CE, Tang-Wai, DF, Smith, EE et al.. Informant-based tools for assessment and monitoring of cognition, behavior, and function in neurocognitive disorders: Systematic review and report from a CCCDTD5 Working Group. Int J Geriatr Psychiatry. 2022;37 (2):. doi: 10.1002/gps.5678. PubMed PMID:35043452 .
  8. Soffer, M, Melichercik, A, Herrmann, N, Bowie, CR, Fischer, CE, Flint, AJ et al.. Time setting errors in the Clock Drawing Test are associated with both semantic and executive deficits. Appl Neuropsychol Adult. 2022; :1-10. doi: 10.1080/23279095.2021.2023154. PubMed PMID:34994261 .
  9. Patterson, N, Isakov, M, Booth, T, Büster, L, Fischer, CE, Olalde, I et al.. Large-scale migration into Britain during the Middle to Late Bronze Age. Nature. 2022;601 (7894):588-594. doi: 10.1038/s41586-021-04287-4. PubMed PMID:34937049 PubMed Central PMC8889665.
  10. Fischer, CE, Churchill, N, Leggieri, M, Vuong, V, Tau, M, Fornazzari, LR et al.. Long-Known Music Exposure Effects on Brain Imaging and Cognition in Early-Stage Cognitive Decline: A Pilot Study. J Alzheimers Dis. 2021;84 (2):819-833. doi: 10.3233/JAD-210610. PubMed PMID:34602475 .
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Affiliations & Other Activities

  • Director of Geriatric Psychiatry, Psychiatry, St. Michael’s Hospital
  • Director of Memory Disorders Clinic, Psychiatry, St. Michael’s Hospital
  • Director of the Geriatric Mental Health Outreach Program, Psychiatry, St. Michael’s Hospital
  • Associate Professor, Department of Psychiatry, University of Toronto
  • Associate Member, IMS